My Crossrock 12‑fret 000‑style case arrived about eighteen months ago for my Martin 000‑15SM. I paid a reduced price at the time, with the understanding that I might become an ambassador if it proved itself. But that’s not why I’m writing this. I’m writing it because I’ve known the other side of the story - the moment when a case fails you, slowly, quietly, while you’re too busy trying to get on with the day to notice.

Years ago, on a winter flight out of Dublin, the cabin crew were up on ladders brushing snow off the wings. We were going to take off that day no matter what the weather, and that suited me fine. I was heading for warmer places with Jackson - my handbuilt biscuit‑bridge resonator, named by my father‑in‑law, who insisted anything that shiny must have come from the city, and the capital of Mississippi is Jackson, so that was that. He and I were finally speaking the same language, conversations that could go on for hours. I’d even bought him a custom case: plush, pristine, black ABS with an engineered valance. I had to stop myself purring when I handled the two of them together.

But that day at the airport was a farce of on/off, on/off the plane, guitar case in hand, sleet exploring every angle it could use to punish me and everyone else. Pick the guitar up, put the guitar down. Repeat. It took a while to notice the steady, progressive, irresistible ingress of water into the case. My feet were soaked - leather shoes, terrible choice - and then the thought hit me: Jackson is standing in the same freezing pools as I am.

He survived, but the case didn’t. A slight greening on the inside of his nickel‑plated bronze body, a few marks on the back of the headstock where the luthier had to get a bit too aggressive with solvent to remove sediment that had transferred from the lining. Nothing catastrophic, but enough to teach me a lesson I’ve never forgotten: a case is not a formality. It’s a promise.

Clara‑Belle is the reason I went looking for something better. She’s my front‑row guitar - the one that comes out first, the one that gets the hours, the one whose voice has settled into my hands. And being entirely North American genuine mahogany, she has none of Jackson’s structural resilience. She’s all warmth and openness and vulnerability. You protect a guitar like that because you know exactly what it would cost you - emotionally, musically - to lose her.

So I went looking. Properly looking.
Shops, warehouses, phone calls to bespoke case makers who spoke in lead times and tolerances. Nothing felt right. Everything was either too big, too heavy, too generic, or too optimistic about what “fits” means.

Then, by pure accident, I met another guitarist on a train somewhere in the English Midlands. I thought he was carrying a parlour guitar - the case was that neat - but no. He unlatched it and showed me a 000 Martin sitting perfectly inside. He was gushing about it, which always makes you suspicious, but the case itself looked sound. Purposeful. Considered.

I took the name off the plate, and when the chance arose I looked them up. One email led to another, and I found myself in a genuinely helpful conversation with May, their European rep. No hard sell, no nonsense - just clear answers, measurements, and a sense that someone on the other end actually understood what I was trying to protect.

That’s how the Crossrock entered the picture.

The first real test was a short‑haul European flight. The guitar travelled on the seat beside me, and the case felt immediately different - lighter in the hand, easier to manoeuvre through the cabin, less of a negotiation with armrests and aisle space. When you’re carrying a guitar through an airport, every kilo counts, and this one simply didn’t fight me.

Then came the long drives. My RV has covered most corners of Europe at this point, and the case has lived upright behind the passenger seat, wedged between jackets, bags, and the usual travelling clutter. But more than half my driving has been in my little Fiat Panda - a car that’s basically a shoebox with notions about itself - and the case fitted easily behind the driver’s seat. It stayed put through every roundabout, every sudden stop, and even a few chaotic laps through the streets of Rome. The smaller footprint makes a surprising difference: it doesn’t dominate the space, and it’s easy to lift out when you need the guitar for a quick play or a soundcheck.

The case has backpack straps, which I’ve never used - most of my carrying is house to car, car to venue, or the odd stroll along the South Strand to a local session - but the longest I ever walked with mine was exactly 5 km, and you bless the smaller profile when you’re fighting crosswinds on an exposed road. Even if you don’t choose to use the straps, the anchor points designed for them are invaluable. I’ve used those anchor points more than once to secure the case in various transport “pods” and improvised luggage spaces, and they’ve kept the guitar rock‑steady every time.

Rain has been a recurring theme. I’m Irish - I expect it - and I’ve stood on wet tarmac in more countries than I can list, waiting for buses or steps or doors to open. I’ve had wooden cases take on water in those moments - a slow, creeping ingress you only notice later. This Crossrock has never let a drop through. The lid closes with a kind of quiet certainty, and the seal does its job.

Temperature swings are part of the life too: cold mornings, warm cabins, sudden sun on a ferry deck. On the old Bilbao ferry - before the new one came in - cars were parked out on the open deck for the entire 36‑hour crossing, fully exposed to whatever the Bay of Biscay felt like throwing at you. Through all of that, the case buffered the changes better than most. I still avoid direct sunlight, but I’ve never opened it to find the guitar shocked or unsettled.

The catches have never once made me flinch - and I’ve owned cases where that wasn’t true. The lining is soft enough that I don’t worry about abrasion. The guitar sits in the mould as if it were made for it - which, of course, it is. That’s the beauty of these Crossrock cases: they’re designed for your specific model of guitar, not some generic well it’s long enough and wide enough coffin you’re handed when you buy an instrument. The fit is intentional, secure, and reassuring in a way only a purpose‑built case can be - no shifting, no rattle, no compromise.

There’s a built‑in humidity gauge, which I glance at, but I also travel with an electronic one that logs the history. Between the two, I’ve always had a clear sense of what the guitar has lived through.

And that’s the point: this case has lived through it with me.

I’m about to pay $399 for a second Crossrock case - not out of obligation, not because of a discount, but because the first one has earned my trust in the most practical way possible. It has protected a guitar I care deeply about through real travel, real weather, and real use. It has made the logistics of movement easier rather than harder. It has removed friction from the craft.

A guitar isn’t just a purchase. It’s the hours you’ve put into it, the way it has opened up under your hands, the familiarity you’ve built. You can’t replace that. You can only protect it. I’ve carried guitars through weather, through airports, through years. I’ve seen what happens when a case gives up before you do. This one hasn’t. That’s why I’m ordering another.

If you’re curious about the case itself, Crossrock usually build these to order. It can take a little time, but it’s worth the wait.
Their product page has the details - https://dm.ie/crossrock

There’s a particular kind of vagueness in guitar reviews that reminds me of Irish rural weather forecasts: “a soft day”, “a fresh breeze”, “a touch of mist rolling in”. Lovely to hear, useless if you’re trying to decide whether to bring the washing in. The guitar equivalent is “vintage‑leaning”, “airy”, “woody”, “modern clarity”. Grand words, all of them, but none will tell you whether the guitar will buckle when you dig in, or bloom when you ease off, or behave itself at a session where the bodhrán player has notions.

I’ve learned I need something sturdier than atmospherics. When I pick up a guitar, I want to know its temperament - whether it’s the kind that’ll meet you halfway, or the kind that sulks until you coax it, or the kind that has opinions about your right hand. That’s not technical in the YouTube sense; it’s just the way I listen. I want to understand the instrument as a partner, not a decorative object that photographs well beside a potted fern.

Over time I’ve built a small set of habits that help me figure this out. They’re not rules, just the anchors (or hooks) I return to when I’m trying to understand a guitar on its own terms. Little tests, small rituals, the sort of things you develop when you’ve spent enough years in rooms where the heating doesn’t quite work and the only honest thing in the place is the instrument in your hands. And every now and then, usually on a back road in Derbyshire or Donegal, you’ll pass a sign offering advice so blunt it could strip paint off a gable wall. You read it the way you’d watch a West Cork man raking a cow toward Dursey in sideways rain - with respect, with silence, and with the full understanding that whatever’s happening is both entirely normal and absolutely none of your business.

I’ve started gathering those anchors in one place. It’s a living document - part method, part field notes and I’ll keep refining it as I go. If you’ve ever watched a glowing review and thought, “Grand, but what does it do?”, you might find it useful.

The method page lives here. Treat it like a field gate: open it if you like, close it after you, and mind the latch. https://myguitar.blog/method

We began with the octave, the simplest and most universal musical experience. It’s what we perceive when one note vibrates twice as fast as another: two pitches that somehow feel like versions of the same thing. That “sameness” is so fundamental that every musical culture on earth recognises it. The octave is our first musical frame - the space in which melodies live, repeat, and return home.

From there we followed the long human struggle to divide that frame into a usable sequence of pitches - falteringly, then experimentally, and eventually with enough consistency that patterns began to emerge.

Those patterns became the modes: early melodic shapes that let singers express different moods long before harmony existed. Their strength lay in their fluidity - each mode could bend to the voice, to the moment, to the needs of a particular chant or region. But that same fluidity kept them local and hard to share. A mode lived where it was sung. It depended on the quirks of particular voices and instruments, and for centuries it remained more a living habit than a stable, transferable system.

Then came the breakthrough.

When we finally divided the octave into twelve equal steps - better described as twelve equal intervals - we created the chromatic scale, a palette of twelve pitches from which we could choose. And something remarkable happened. Those old modal patterns, once slippery and context‑bound, suddenly revealed themselves as simple patterns of one and two intervals. The chromatic scale didn’t erase the modes; it exposed them. It made them portable. It made them transferable. It made them teachable. And in that moment, something fundamental shifted: music stopped being local knowledge and became shared knowledge. For the first time, Europe had a musical language that could travel.

Those patterns, distilled and clarified, are the diatonic scale.

A diatonic scale is a seven‑note scale built from the specific pattern of one and two intervals that emerged when the old modal patterns were clarified by the chromatic scale. Many cultures use heptatonic scales (7 pitches), but only this family of modal patterns - the ones that divide the octave into five two‑interval steps and two one‑interval steps arranged in a particular order - are diatonic. What makes them diatonic is not the number of degrees, but that underlying structure of one and two intervals that gives Western music its sense of movement and tonal gravity.

Actually, there is more to this story than meets the eye. That rule - five two‑interval steps and two one‑interval steps - allows twenty‑one possible patterns, but only seven of them are diatonic. The other fourteen are disqualified because their one interval steps cluster or fall symmetrically, destroying the tonal gravity and directional pull that define diatonic music.

So those seven modes we discussed in Part 6 - they are simply the seven diatonic scales, each with seven degrees. Nineteenth‑century teachers came up with a way to remember them: take the Ionian (major) pattern and rotate it, moving the last interval to the front. Do that five more times and you have the full array of diatonic scales, which we also know as the modes. Among them you’ll find today’s major scale (Ionian mode) and minor scale (Aeolian mode).

What drove us here ?

What drove us here was the same force that carried music from plainsong to polyphony: the desire for more. More colour, more movement, more ways for notes to lean on each other and pull away. A single melodic thread was no longer enough. Musicians wanted depth, contrast, a way for several voices to coexist without collapsing into chaos. That pressure pushed them toward the foundation of the diatonic scale. Now let’s see what we’ve done with it - how we’ve used it to satisfy that hunger for more.

The Birth Of The Chord

Now pick up your guitar. Play a few notes, remind yourself of that pattern of intervals we call the major scale (the Ionian mode). Then play an E on the sixth string. Just the single note. Let it ring. That’s the fundamental - the bare thread of melody our ancestors began with.

What’s happening when you pluck the string

But a plucked string never vibrates in just one way. It moves as a whole from end to end, and at the same time it also vibrates in halves, thirds, quarters and other fractions of its length. These fractional vibrations create partials - additional frequencies based on those fractions, stacked above the fundamental, that give a note its colour. On a well‑behaved instrument many of these partials fall into a harmonic series, simple ratios of the fundamental frequency that reinforce the pitch and enrich the sound.

Discovery experiment

Now play a full E chord in first position. Feel the difference. Feel what they were reaching for. That sense of reinforcement, of depth, of something larger than the single note. Play it again. Listen for the fifth (B) sitting above the fundamental, doubling part of its vibration and strengthening the octaves. Then listen for the major third (G♯) - the note that gives the chord its colour, its quality, its emotional tilt.

Look down at your fretted strings. Look at what you are actually playing: E, B, E, G♯, B, E. Three tonics, two fifths, and a major third - the 1st, 5th, and 3rd degrees of the major scale. Now confirm the feeling by playing those three notes on your E string alone:

1. open (E) (root, 1st degree)

2. 4th fret (G♯) (3rd degree)

3. 7th fret (B) (5th degree)

Now repeat them, briskly. What do you hear? It’s the three notes of the chord - the same intervals that appear in the early partials we’ve just talked about. Look at the pattern of frets: 0, 4, 7. That’s the pattern of multiple‑intervals that create a major chord.

What you’re hearing is the physics of the string made audible: the fundamental and its early partials, and the way other strings can reinforce or reshape them. This is the doorway into harmony. This is why the diatonic scale matters. And now we can describe, formally and clearly, how to make a chord.

How To Make A Chord

To build a chord, we start with a single note - the root, the 1st degree of the scale and the pitch the chord is built on. From that root we add the multiple-interval that gives the chord its stability: the perfect fifth. This isn’t an arbitrary choice; the fifth is the strongest partial after the octave when a string vibrates, so it feels inevitable to the ear. On some guitars your tuner may even detect it in the first moments of a plucked note. This root–fifth pair is the backbone of almost every chord you will ever play, and on the guitar it’s the basis of the modal “power chord.” Only then do we choose the colour. Once you learn the palette, that colour doesn’t have to be the obvious one - you have options that tilt the harmony in different ways - but for now, to turn this stable frame into a full major chord, we choose to add the major third above the root. That third gives the chord its emotional tilt, its quality. These three notes - root, perfect fifth, major third - are the 1st, 5th and 3rd degrees of the scale, and together they form the major triad.

Choosing The Colour

Before we look at the minor chord, it’s worth noticing that the third itself is optional. If we leave it out entirely, keeping only the root and the fifth, we get a modal chord - open, stable, and without emotional tilt. Guitarists know this sound instinctively; it’s the power chord, the frame without the colour. And instead of omitting the third, we can also replace it: swap it for the 2nd or the 4th degree and you get a suspended chord, a harmony that leans forward, waiting to resolve. These are all colour choices. The structure stays the same - root and fifth - but the lintel we place on top changes the mood.

And of course, the third isn’t the only way to colour a chord; adding other degrees - like the 7th - can shift its mood just as strongly, giving it tension, warmth or direction.

Pick up your guitar again and play that first‑position E major chord. Play it a few times until the sound settles into your bones. Now lift the first finger of your fretting hand and play it again. What happens? The mood shifts - not dramatically, but unmistakably. Describe it to yourself. Feel the way the harmony tilts. All you’ve done is adjust one pitch, the G♯, lowering it by one interval to G.

That simple adjustment teaches us two things. Colour is real - achievable with the smallest movement - and it’s yours to use. A single interval, changed by a single fret, can create a dramatic shift in mood.

Time for one more discovery experiment. Remember, we call the notes of the scale degrees, numbered in order of ascending pitch. Now that you know the 1st degree (the root) and the 5th degree are the supports of the chord, try adding different colours by choosing different degrees. Pick a major chord. Work out the root and the fifth, suspend the third, and then try adding the 2nd degree or the 4th degree. Play each version a few times and feel what happens in your bones. Each small adjustment shifts the mood - sometimes gently, sometimes dramatically - and all you’ve changed is a single degree.

Where We Go Next

Today we’ve explored the foundations of colour in harmony: how the 1st and 5th degrees give a chord its structure, and how the other degrees shape its mood. But colour is only half the story. Music also moves. Chords lean, pull, settle and travel, and that movement comes from the diatonic scale itself - from the way its seven degrees relate to one another. Now that we’re standing on the diatonic bank, the next step is to explore how harmony flows along it.

Some small definitions before we move on

Root
The root is the note a chord is built on - the 1st degree of the scale, the pitch that anchors the harmony. Change the root and you change the foundation; everything else sits on top of it.

Triad
A triad is a three‑note chord built by taking a degree of the scale and adding the notes a third and a fifth degree above it. The most common example is the major triad, formed from the 1st, 3rd and 5th degrees of the major scale. These three notes create the basic harmonic unit of Western music.

Take Away

You’ve now reached the foundation stone of 21st‑century Western harmony: the simple frame built from the 1st and 5th degrees of the diatonic scale. These two degrees - the root and the perfect fifth - are the pillars of almost every chord you will ever play. Standing on the diatonic bank, you can see how every other degree you add is a colour choice. The classic example is the major triad, where adding the 3rd degree completes the chord and gives it its distinctive major colour. The structure stays the same; the mood comes from the degree you choose to place on top.

”The Story of Music” is a complicated one, but not difficult. Told weekly in this series, it keeps unfolding. To explore more you’re invited to join a conversation in The Story of Music reader’s room.

You’re in a room - a church, a guitar shop, a friend’s kitchen - and suddenly your guitar feels alive. Notes bloom. Harmonics hang in the air. You hit one chord and think: there it is. The sound you’ve been chasing for years.

You go home, sit down, play the same chord… and it dies. Flat. Grey. Like someone quietly unplugged the magic.

Worse: You bring the “dud” guitar back to the shop, sit a few metres from your original spot, and it’s still dead. Then someone across the room picks up the same model and it suddenly sings, and you’re left questioning whether you’ve somehow lost the ability to play between breakfast and lunch.

This is the emotional whiplash of the outer craft - the part of musicianship that has nothing to do with technique, tonewoods, or talent. It’s the part nobody warns you about, and guitar shops rarely understand.

The culprit is invisible, silent, and everywhere.

The Gremlin Has a Name

Rooms have nodes - pockets where certain frequencies are amplified and others are strangled. They’re created by the dimensions of the room, the materials in it, and the way sound waves bounce, collide, and cancel each other out.

Sit in one spot and your low E might roar like a cathedral bell. Move a metre to the left and the same note collapses as if someone stuffed a sock in the soundhole.

This isn’t mysticism. It’s physics. But it feels like mysticism because the effect is so personal. You think you’ve found “your sound,” but what you’ve really found is a temporary alliance between your guitar and the geometry of the room.

And when that alliance breaks, it feels like betrayal.

Why Guitar Shops Make This Worse

So many shops are long rectangles with hard surfaces - perfect for creating strong nodes. You might sit in a corner where the room is boosting 110 Hz, and suddenly your guitar feels warm, resonant, alive. Move to the centre of the room and that same frequency is cancelled, leaving the guitar thin and brittle.

This is why you can dismiss a guitar in one shop, then hear someone else play the same model in another shop and think, Oh God, am I really that bad?

You’re not. You’re just hearing the room.

A Small Experiment (That Will Change How You Hear Your Guitar)

Try this with your own guitar. It takes two minutes and it will permanently change how you understand your instrument.

1 : Pick a single note : The open G string works well, or the 5th‑fret D on the A string.

2 : Play it repeatedly : Slowly, evenly- Let it ring each time.

3 : Walk around the room while the note sounds : Move to corners, stand near walls, sit on the floor, stand up again.

4 : Listen for the shifts : You’ll hear the note swell in some places and almost disappear in others. You’ll find spots where the guitar feels rich and alive, and others where it feels like it’s made of cardboard. That’s the room talking.

5 : Now sit in your usual playing spot : Play the same note. Ask yourself: is this a “good” spot for this guitar, or have you been sitting in a dead zone for years without knowing?

So What Are Nodes, Really?

If you imagine a room as a box of trapped energy, certain frequencies fit neatly inside it - like a standing wave on a string. When a frequency “fits,” the room reinforces it. When it doesn’t, the room cancels it.

• A node is where the wave cancels itself.

• An antinode is where it reinforces itself.

Your guitar is not just vibrating in your hands - it’s interacting with the entire room. Every note you play sends out a wave that either finds a friendly space to resonate… or walks straight into a wall of cancellation.

This is why the same guitar can feel warm in one corner, brittle in another, and transcendent in a church nave. It’s why guitar shops are emotional minefields. It’s why you can fall in love with a guitar at 2pm and doubt it at 8pm.

You’re not imagining it. You’re hearing the architecture.

This Scales All the Way Up

If you think this only matters in bedrooms and guitar shops, it doesn’t. The same physics that kills your G‑string in the corner of your living room can ruin an entire section of a stadium.

Concert halls, theatres, arenas - they’re all giant containers of standing waves. Architects spend years shaping them. Acousticians model them. And still, even at the highest levels of touring, people get it wrong.

I have a friend who’s the AV lead in a popular stadium. He’s worked with everyone - the megastars, the legacy acts, the stadium‑fillers. He’s modest. He keeps out of the way while the touring crew builds their mountain of speakers. But at some point, someone always asks him the same quiet question:

“What’s the thing we need to watch out for in here?”

And he tells them. Because he knows the room. He knows where the low end piles up, where the mids vanish, where the upper tiers get hammered if the arrays are angled wrong. He’s lived the space for years.

Most crews listen. Some don’t.

Every so often he’ll watch a famous band’s engineers aim a line array in a way that he knows - absolutely knows - will kill the sound in a whole block of seats. He’ll mention it gently. They’ll shrug it off. And later, when the show starts, you can see it on the faces of the fans in that section. You can hear it in the complaints drifting out after the encore.

Nodes don’t care how famous you are. They don’t care how expensive your rig is. They don’t care how many Grammys you’ve won.

The room always wins.

The Takeaway

Once you understand nodes, you stop treating sound as something that lives only in the guitar. You start noticing the invisible architecture around you - the way a room can cradle a note or crush it.

You stop blaming yourself for the dead spots.
You stop blaming the guitar for the magic disappearing.
You start listening to the space as the third partner in the conversation.

And that’s the real outer craft: learning to hear the room as clearly as you hear the instrument.

Because sometimes the most important part of your sound isn’t in your hands at all.
It’s in the air between you and the walls.

So let’s start again - not with diagrams or labels or rules - but with what you already know. - With sound. With the way music feels. Because it's likely that you already sense the differences I’m going to describe.

Let’s start with something familiar. Something that’s probably deep in your bones:

“do, re, mi, fa, so, la, ti, do.”

You can sing it to yourself if you like. Feel the way it rises in steps. Feel the long and short steps in your own voice - steps you’ve been using your whole life without ever noticing they were there.

Let’s pick up a guitar and noodle for a moment. Play the major scale slowly, notice the way it moves through long and short steps until it brings the sound home. It’s a shape your ear already knows. It’s that “do ré me…” the sound of “home base” - the place melodies like to return to.

That shape, that pattern of steps has a name: Ionian - but the name isn’t the point.
The point is the pattern: the mix of long and short steps that gives the scale its familiar movement.

But let’s stay in our childhood, let’s play a skipping game. Imagine the chromatic scale as twelve stepping-stones laid across a river. Now in this game you can only skip on seven of them. But that’s not the fun part, - it’s the pattern of steps you choose that’s fun. You have to pick a pattern of steps that tells us how you’re feeling as you cross: curious, bold, cautious, wistful.

You’ve already given us one, with that “do ré me…” But you’re a bright child so you’ll quickly recognize that there are lots of possiblities for different patterns of skipping on those stones to cross the river. Lots of different ways to express mood and feelings

But it's time to come back to today and move on from talking about “steps” and “slices”. They've been helpful words, but now we need something more precise, and musically exact. One we can use as a solid foundation for our way forward - Interval.

Interval
The distance you feel when you move from one fret to the next. - Making it the smallest possible distance between two adjacent pitches in our 12 step - now 12 interval - chromatic scale

This is a tighter definition than you’ll find in most music books. Many teachers use interval to describe any distance between two notes, large or small. When I need to talk about those larger distances, I’ll call them multiple‑intervals.

Here, interval means the smallest step - the basic unit of musical distance. Sometimes the next pitch in your scale is one interval away; sometimes it’s two or more. Using the word this way lets us talk about intervals and frets almost interchangeably, and it gives us a precise, physical way to describe the space between pitches.

When the Pattern Breaks

Now we have a way of describing the physical space between the notes. Let's think again of the major scale. Not the idea of it. Not the theory of it. Just the feel of it - the feel that arrangement of intervals gives us.

And when you noodle with it - sliding into notes, lingering on some, skipping others -you’re not thinking about theory or rules. You’re that child just following the motion of the pattern of stepping stones across the river.

That motion is what gives the scale its feeling. It’s why it sounds settled, open, and clear. And here’s something you’ve probably felt without ever naming it: If you step onto a note outside that pattern - one of the stepping stones you are not supposed to be using- the whole thing jolts. It’s like putting your foot on a loose stone. Your ear flinches. You feel the pattern break. And that tiny jolt tells you something important:

The pattern is real. Your ear knows it. And it knows when you leave it.

The scale is the sequence of seven notes you play.
The mode is the pattern underneath it.

The major scale is a mode, and long before anyone named it, people were already at home singing and playing with these steps. But it is only one mode - the Ionian mode - and the others weren’t built from it. They were its siblings, patterns people were already singing long before anyone tried to force them into a single family tree. The 19th‑century teaching shortcut that treats the modes as “children” of Ionian is convenient, but it hides their real identity - and if you doubt that matters, try walking into an Irish trad session with only the modern rotation model in your head.

To talk about these modes clearly, we need one more piece of language.

We’ve already discovered that the word interval lets us talk clearly about walking up and down the chromatic scale - almost the same as talking about frets. Now we need the matching word for those stepping‑stones we’ve been skipping on. When musicians talk about those stones - the places your ear expects you to land - we call them degrees.

Degree
The position of a note within a scale, counted upward from the starting note.

If you imagine the scale as the line of seven stepping stones you can skip on, the degrees are simply the stones themselves - first, second, third, and so on. Each degree has its own character and its own role in the pattern, and using the word degree lets us talk clearly about how melodies move. But if these degrees are so significant, where did they come from?

Before There Were Patterns, There Was the Voice

Imagine stepping back to a time before scales, before degrees, before notation, before the twelve equal interval steps were carved into the landscape. All you have is a voice. You breathe in and the sound rises. You breathe out and it falls. You hover on a note because it feels right. You slide away from another because it doesn’t. You repeat a pattern because something in it matches what you’re trying to express.

There are no rules here. No right notes or wrong notes. Just instinct. A rise in pitch that feels hopeful. A fall in pitch that feels tired. A small step that feels cautious. A bigger one that feels bold. You’re not following a pattern - you’re discovering one.
Not by thinking, but by singing, by playing.

And everyone around you is doing the same. A whole community of voices gradually settles into shared habits:

• certain rises that feel like beginnings

• certain falls that feel like returns

• certain turns that feel like questions

• certain landings that feel like home

These habits become familiar. They become the musical accent of a culture. These were the first modes - not as theory, but as ways of moving through sound, through pitch, that people kept returning to because they felt true, they sounded right.

The Modes Hiding in Today’s Music

Before we name anything, let’s stay with the sound of things.

The gentle‑rise pattern

Think of Scarborough Fair, or The Star of Munster, or any melody that feels dreamy or wandering. Early in the tune there’s a particular rise - a big step up, then a smaller one - that gives the melody a kind of gentle lift, as if it’s looking out over a landscape It’s not happy or sad. It’s curiosity mixed with longing. And you’ve just remembered one of the old patterns.

The forward‑push pattern

Now think of Norwegian Wood, Sweet Home Alabama, Royals, or a traditional reel. These tunes have a different kind of movement - two steady steps forward, then a quick one - that makes the melody feel grounded and energetic, like it’s leaning into the next beat. It’s the feeling of momentum. And You’ve just heard another old pattern.

Two patterns - Two feelings. And so far, no theory needed.

Now We Reveal the Patterns

Underneath those feelings are simple patterns made by moving through steps of one and two intervals or frets.

So the do ré me pattern was
0-2‑2‑1‑2‑2‑2‑1
A pattern sounding settled, open and clear

The gentle‑rise pattern:
0-2‑1‑2‑2‑2‑1‑2
This is the pattern that creates that open, searching lift.

The forward‑push pattern:
0-2‑2‑1‑2‑2‑1‑2
This is the pattern that creates that rolling momentum.

Only after people noticed these patterns did they give them names:

• Ionian → 0-2‑2‑1‑2‑2‑2‑1

• Dorian → 0-2‑1‑2‑2‑2‑1‑2

• Mixolydian → 0-2‑2‑1‑2‑2‑1‑2

But the names came after the music. The patterns came first; they were already alive in the tunes. We only recognised them formally when we laid those traditional patterns of short and long steps over the evenly spaced twelve intervals of the chromatic scale. That’s when the modern names were confirmed.

What People Actually Called These Sounds (c. 1695)

By the late 1600s, musicians had been singing and playing these shapes for centuries.
Nobody talked about “modes” the way we do now. They didn’t think in labels. They thought in feelings. They recognised sound‑types, not categories:

• “the old minor” (Dorian)

• “the major with the flat seventh” (Mixolydian)

• “the straight major” (Ionian)

• “the sad minor” (Aeolian)

Folk musicians often used tune families instead of theory:

“It goes like Greensleeves.”
“It’s in the Lilli Burlero way.”
“It’s the same pattern as John Barleycorn.”

Modes weren’t systems. They were expressive habits - patterns that gave a progression of pitches people liked.

Some Modes Survived, Others Didn’t.

Across European traditions, some interval patterns became everyday favourites and others fell away. Dorian and Mixolydian endured because they sit comfortably in the voice.

Dorian: Sadder than Ionian, but not as sad as Aeolian - the scale we today call the natural minor. In Dorian, the 6th degree has a pitch one interval higher than in Aeolian. That “raised” 6th prevents the heavier sadness we associate with the natural minor pattern. It keeps the sound open, even when the melody leans toward melancholy.

Mixolydian: Ionian in flavour, but with the 7th degree one interval lower. It’s the same difference guitarists hear between a major‑7th chord and a dominant‑7th chord - that slight drop in the top pitch that changes the whole emotional shape. In a scale, the lowered 7th gives Mixolydian a relaxed, open quality that suits unaccompanied singing beautifully.

Phrygian and Locrian faded because they feel unstable. Phrygian begins with a one‑step interval (1 – 2 – 2 – 2 – 1 – 2 – 2), which gives it that tight, tense opening. Blues players will recognise the feeling - that deep, diesel‑engine growl in the stomach. It’s exotic, edgy, and hard to pitch cleanly against a drone.

Locrian goes further. Its 5th degree is “flattened” by one interval, so the ear never gets the stable “home” that almost all Western melodies rely on. Without that solid fifth, the whole mode feels like it’s leaning sideways. If you want to hear this instability, take your guitar and, starting on your open A string, fret this pattern:
1 – 2 – 2 – 1 – 2 – 2 – 2
That’s Locrian - and you’ll feel immediately why melodies don’t settle there.

The point here is that folk music is melody‑driven, and melodies in Dorian and Mixolydian sit comfortably over drones. Phrygian and Locrian don’t - they push against the drone, offering notes that clash with the fixed pitch of the drone underneath.

Laying the Patterns Over the Chromatic Scale

Now that you’ve heard these patterns in real music, we can place them onto something solid: the twelve‑interval octave (the chromatic scale). Return to that imaginary river crossing — twelve evenly spaced stones, all the same size. When you move across those stones using different combinations of one‑interval and two‑interval jumps, you create different patterns, different modes.

The chromatic scale is the path.
A mode is the pattern you walk along it.

Same twelve intervals. Different patterns. Different feelings.

Finally, in case you’re curious, the mode names themselves come from the peoples and regions of Ancient Greece, even though the interval patterns they name are entirely modern.

If you want to explore these patterns for yourself, you can download a simple PDF I’ve created. It lays out the twelve‑step chromatic scale and the interval patterns for each of the seven surviving modes from the ecclesiastical and 17th‑century tradition and hints at their use in modern musics.
Download it here: https://dm.ie/modes

Take-Away

Modes are seven pitches, in patterns chosen from the twelve notes of the chromatic scale. Each pattern creates a different kind of movement and a different emotional colour.

• Ionian and Aeolian are the best‑known modes - the major and minor scales we all grow up with.

• Dorian is central to Irish traditional music, giving many airs and ballads their open, bittersweet sound.

• Mixolydian and Dorian appear naturally in pop, folk, and film music because their patterns feel intuitive and expressive.

• Some modes survived because they work with drones and melodic habits.
  Dorian and Mixolydian blend well with the fixed pitches of pipes, fiddles, banjos, and early folk instruments.

• Other modes faded because they clash with drones or lack stable anchor points.
  Phrygian begins with tension; Locrian weakens the fifth — the note melodies rely on for stability.

Of course, not every real‑world pattern fits neatly inside these modes. Music is full of shapes that live beyond the tidy rules we’ve just mapped. The pattern we use for expressing the blues is a classic example - a lived, expressive sound that sits outside the tidy interval patterns we’ve just explored

In the end, modes aren’t theory - they’re expressive patterns.
Different ways of selecting seven notes to shape how a melody feels.

”The Story of Music” is a complicated one. Told weekly in this series, it keeps unfolding. To explore more you’re invited to join a conversation in The Story of Music reader’s room.

There was chaos on the roads in and out of Vienna today. Priests, peasants and artisans were blocking the laneways with carts, beasts, and whatever else they could drag across the mud. Travel and trade were at a standstill.

Richard Roe of Sussex, who had travelled for a week with a troupe of mummers to attend the protest, was clear in his view.

“It’s not right,” he said. “Those toffy‑nosed composers, organists and clavichord‑builders want it all their own way. We’re not having it. We’ve always had seven, and we’re stickin’ with seven.”

Our correspondent also spoke with the choirmaster at Köln Cathedral. Not wishing to be identified, he described growing tensions within his own community.

“The organ builders are insisting on their new engineering,” he said, glancing toward the workshop. “Twelve equal slices, each with its own place. But my lead singers still live in the old world. Their pitches bend and breathe. They sing from memory, from tradition. Matching that to the new instrument…” He paused. “Let us say it has not been easy.”

Meanwhile in Paris, a spokesman for the rationalist school dismissed the unrest entirely, insisting that “twelve equal tones demand twelve equal names,” and suggesting that resistance was merely “a failure of the provincial imagination.”

The Real Argument Behind the Riot

Of course, none of these events ever took place. But the tensions they hint at were real enough, and they lasted far longer than any imagined protest. Across Europe, singers and musicians lived for centuries inside a seven‑tone world shaped by memory, ritual and the body; While instrument‑makers and theorists slowly pushed toward a new landscape that could be measured, divided and engineered. Behind the noise and the mud, the real dispute was simple: seven inherited names trying to find their place on a new twelve‑step octave. The shift was not sudden. It took generations for the old modal behaviours to bend toward tempered ones, and even now the migration is incomplete: Folk singers still lean into the old flexible pitches, and modern fretted instruments still carry the imprint of the rational grid.

Laying the Octave Out Straight

As an English folk singer and an Irish sean‑nós singer, as well as a guitar player, I feel that divide in my own hands and voice; there are songs where I simply lay the guitar aside because the instrument’s fixed slices can’t follow where the melody wants to go.

When the twelve‑slice chromatic system finally settled in, it didn’t replace the old order, it simply laid itself over it. The seven names stayed because they were already woven into how people heard. To see how the old seven‑tone world settled into the new twelve‑slice one, it helps to lay the octave out as a straight line. Seven of the slices inherited the old names- C, D, E, F, G, A, B - because those were already the familiar places in the musical landscape.

I’ve used the Ionian mode here - the modern major scale - not because it is special, but because it is the only seven note diatonic pattern that uses all seven letter names with no need to use nudge the notes up or down, no need to use accidentals.

For us, this gives the clearest view of how the inherited seven‑note world was nudged onto the new grid. With C to C in their familiar sequence.

What about the other 5 steps

The other five steps (or slices) had no names at all; but they weren’t simply the spaces between the old pitches. When equal temperament arrived, the named pitches had to shift slightly to fit the new geometry. Some moved a little up, some a little down, and some stayed close to where they had always lived. The arrows above the note names in the diagram show the direction of that movement.

The unnamed slices were still needed. They became the substitute slices you reached for when you changed key. If you moved from singing in the key of C to the key of D, the old F no longer sat in the right place. The interval between E and F was now much too small, and the interval between F and G was far too wide - a wolf tone - with the pitch of F sitting uncomfortably low. The melody naturally wanted a slice between F and G; So that unnamed slice sitting between the F and G of the new chromatic scale, became the stand‑in for F in the key of D. It was still an F, but now it lived in a different place. Singers did what they always did: they nudged the F up to the nearest workable interval. And when musicians needed to show that nudge in writing, they kept the old name but marked it with a sign: F♯ - the sharp. The tone was familiar; the label simply told us it had been nudged.

A pattern emerges

Once the old modal pitches had found their nearest places on the new twelve‑slice line, something simple but important became visible. The shapes of the modes were still there. Their spacing - a long step, another long step, then a short one, and so on - had survived the drift. What changed was not the shape of the melody but the surface it rested on. And when those familiar shapes were laid against the even steps of the tempered octave, they revealed themselves as interval patterns we could describe: 2–2–1–2–2–2–1 for the Ionian mode, and other patterns for the other modes. These patterns weren’t invented. They were the natural outlines of the older modal world, made visible by the new chromatic grid.

Discovery experiment for your guitar

Take your guitar and play an open A string. Now slide up two frets and play the next note. Then two more, and again, following this pattern from the nut:

Open – 2 – 2 – 1 – 2 – 2 – 2 – 1

You’ll end up at the twelfth fret, having played a major scale in A. Now, if you’re in the mood, name the seven notes inside the two As of the octave. How many sharps are there? In other words: how many of the original seven notes had to be nudged up to recreate an approximation of the old modal scale?

The answer is three.

We’re Stickin’ With Seven

So, just as Richard Roe in our fictional newspaper article demanded, we still have the seven original note‑names. And as had always been the case, a different key called for a note with the same name but a different pitch, to suit each scale and each mode. But now when notes were nudged. that simple modal practice was recorded by adding a sharp or a flat symbol to the name label of the note.

So now equal temperament had “rationalized” that long‑standing practice of nudging a pitch up or down; And it did so by giving each of those nudged positions a fixed place inside the octave. And that’s how our modern accidentals were born.

Accidentals

In the older musical world, the important thing was the name of the note, not its exact pitch. Singers learned by letter names and by the shapes of the modes - the familiar melodic paths that singers knew by ear - and they nudged pitches as needed to make the line work. Those nudges were considered accidental to the note - temporary adjustments, not new notes. Equal temperament later fixed those adjustments into permanent places inside the octave, but the old way of thinking survived in the symbols we still use.

Today's student consternation wirh sharps and flats arises because we've learned to treat pitch as the primary thing and the name as secondary; which is why accidentals can feel so arcane: they come from a culture where the name stayed constant and the pitch was the part that moved. We don’t do that in the modern world so we have a naming system that confuses the simplicity of the 12 note palette available to us

Take-Away

The seven note‑names we use today aren’t logical inventions; they’re cultural survivors. They come from an older, flexible, modal world - one that gradually settled onto the twelve equal slices of the modern chromatic scale. While the unnamed slices became the substitute pitches we used whenever we weren’t in C. But they kept the same old labels - C, D, E and so on - with an added sign to show they’d been nudged up or down to keep the shape of the familiar mode they were performing in

Those sharps and flats were simply the marks that let the old melodic shapes find their nearest home on the new twelve‑step grid. And once those shapes were visible, they became the interval patterns we now call scales. The diatonic system isn’t a break with the past; it’s the past made legible. And that’s where we go next.

”The Story of Music” is a complicated one. Told weekly in this series, it keeps unfolding. To explore more you’re invited to join a conversation in The Story of Music reader’s room.

Most of us meet a guitar with our eyes. We notice the shape, the wood, the finish, the feel of the neck. We compare instruments by sight and touch long before we ever compare them by sound. It’s an easy habit to form, because the guitar is such a physical object - something we hold, something we see, something we carry.

But a guitar doesn’t reveal itself through appearance. It reveals itself in the brief life of a single note.

The Shape of a Note

Every note has a shape. It begins, moves, settles, and fades. Those tiny changes in behaviour are where a guitar’s voice actually lives - not in the wood you can see, but in the sound you can hear.

What You Need to Hear It

To explore that voice, you don’t need theory. You only need a quiet moment and one plucked note.

Your first discovery experiment

Pick up a guitar - any guitar - and play a single note. Let it ring. Listen to what happens in the seconds after the string leaves your fingertip. That small event contains more information about the instrument than anything you could learn from its shape, its woods, or its scale length. It’s the first step in understanding timbre: the acoustic shape of sound, and the way a guitar finds its voice when played. (There’s a more formal definition at the foot of this page)

When you let a note ring, you’re hearing more than pitch. You’re hearing behaviour. A burst of energy, a shift, a settling, a release back into silence. That behaviour is the beginning of a guitar’s voice.

What You’ll Notice

You’ll notice more than you might expect: a brightness that wasn’t there at the start, a softening, a slight wobble, a moment of settling, a gentle fall. These aren’t quirks - they’re the natural stages of a note’s life, and they’re the foundation of timbre.

Once you can hear these small events clearly, the instrument in your hands becomes something different: not an object defined by shape or wood, but a sound‑making system with its own behaviour, identity, and character.

THE SIX MOMENTS IN THE LIFE OF A PLUCKED NOTE

Moment 1: The First Contact & Transient

This is the instant the string leaves your fingertip or pick. It’s a burst of kinetic energy released into motion - into sound - a brief transient, bright and unstable, before the note begins to find its shape. The attack tells you about the guitar’s responsiveness:

• A quick, clean transient - suggests an efficient system.
• A slower or softer transient - hints at a heavier or more resistant design.

This moment sets the entire behaviour of the note in motion.

How a String Actually Vibrates

A plucked string doesn’t vibrate in just one way. It moves as a whole, from end to end, but it also vibrates in fractions of its length at the same time. These fractional vibrations create partials - the additional frequencies that sit above the fundamental pitch and give a note its colour, because they are accurate fractions of the fundamental. On a well‑behaved instrument, many of these partials fall into a harmonic series - partials that sit in simple, tuneful ratios with the fundamental - and they reinforce the pitch and add colour.

On a less stable system, some wander off that series and become inharmonic - essentially bad fractions of the fundamental - adding a subtle, unpleasant haze around the note. And when the higher partials get too lively or poorly controlled, they can spill into a kind of bright, unfocused noise - the same “bag of nails” phenomenon I ran into when I changed the bridge pins on Éala and had to coax the upper spectrum back into balance. ( wrote about that “bag of nails” moment with Éala here )

The most important fractions are:

• 1/2 the string length - the second partial (pink), one octave above the fundamental.
• 1/3 the string length - the third partial (light blue), an octave plus a fifth above the fundamental.
• 1/4 the string length - the fourth partial (not shown, but it divides the string into four equal vibrating segments), two octaves above the fundamental (first partial).

These partials are always present, but their strength and balance depend on the guitar’s materials, body shape, scale length, the way the string is struck and how the instrument handles energy. The third partial, in particular, has a strong influence on whether a guitar sounds bright, clear, or slightly hollow - something you can see visualised in my article on the D’Addario tuner’s real‑time spectrum display (which you can read about here). I’ll come back to this when I introduce the three‑axis constellation - particularly the coloured/direct axis — because the way an instrument shapes and releases these partials is one of the clearest markers of where it sits on that axis.

When you listen to a single note, you’re not just hearing the fundamental pitch. You’re hearing the pattern of partials that the guitar can support, emphasise, or suppress. That pattern is the beginning of timbre.

Moment 2 : The Early Shift

Right after the transient, the sound begines to change shape. The initial brightness falls away as the vibration of the string settles into a more stable pattern. This is the moment when the partials begin to rebalance, and the guitar’s character starts to emerge.

The third partial is especially important here. It often rises or falls in strength during the Early Shift, and that movement has a direct influence on the colour of the note:

• A strong third partial - gives the note a focused, ringing quality.
• A weaker third partial - produces a softer, more open sound.

What you’re hearing in this moment is the guitar deciding how it wants to speak - the first glimpse of its harmonic identity.

Moment 3 : The Settled Tone

A second or so after the note begins, it finds a centre. The wobble stabilises, the harmonics align, and the sound becomes steady. This is the most truthful part of the note’s life - the point where the guitar stops reacting to the strike and starts revealing its own design: its materials, its body dimensions, its scale length, its internal stiffness. If you want to know what a guitar actually sounds like, this is the moment to listen for.

Moment 4 : The Bloom

Some guitars produce a bloom: a slight rise or opening in the tone after the note settles. It can be subtle - a widening of the tone, a sense of the sound filling out, a small increase in presence. Bloom is a direct result of how the guitar’s body shape, top thickness, bracing, and air cavity handle energy.

Dicovery experiment 2: A clear way to hear it is to pluck a single note on the low E string at the 7th fret. That note rings long enough, and with enough harmonic content, for the bloom to reveal itself if the guitar supports it. Listen for a moment where the sound seems to open or lift slightly after the initial settling.

Discovery experiment 3: The A string at the 5th fret (D3) also works beautifully - slightly warmer, slightly slower, but equally revealing. On some guitars, this note reveals the bloom even more clearly, especially if the instrument has a strong mid‑range response.

Not every guitar blooms, but when it does, it’s one of the clearest signs of how the instrument breathes.

Resonance and Reflection

Bloom is also the moment where you can first hear the difference between resonance and reflection in a guitar. A resonant instrument feeds some of the body’s energy back into the string, giving the note that slight lift or opening. A more reflective instrument returns less energy, letting the note fade more directly.

Most solid‑wood guitars are built to resonate, shaping the note by storing and releasing energy. Some laminate guitars are built to reflect instead, offering a quicker, more controlled response. In those laminate guitar examples, reflection is a design intention, not a budget limitation. Both behaviours are valid; they simply shape the way the guitar breathes.

Moment 5 : The Slow Fade

As the note begins to fall away, its pattern of partials changes again. The higher partials - the ones produced by the smaller fractions of the vibrating string - are the first to weaken. They fade quickly because the string’s remaining energy is scattered into very fine motions - too small to move the air in any meaningful way - so the sound slips away almost immediately. The lower partials, especially the fundamental and the stronger early harmonics, tend to linger. This is the same behaviour you noticed earlier when listening for the strength of the third partial; now you’re hearing how those partials disappear.

Some guitars fade evenly. Others lose their upper partials quickly and leave a warm core behind. Some hold a clear, steady core of pitch long after the surrounding colour has faded. Others do the opposite, letting the shimmer and complexity linger while the centre slips away. In practice, guitars tend to fall into one of two broad patterns:

• Some guitars decay into purity

• Others decay into complexity or noise

And this behaviour is a signature of the instrument’s voice. That slow fade - whether it resolves into a clean centre or dissolves into texture - tells you as much about a guitar’s identity as its attack or its sustain.

Moment 6 :The Final Disappearance

The last trace of the note - the moment it slips beneath audibility - is more revealing than it seems. By this stage, only the lowest partials remain; everything higher has already fallen away. What you hear in this final moment is the guitar’s residual balance, the last shape of its harmonic behaviour.

• A clean, even disappearance suggests stability and balance in how the guitar handles its remaining partials.

• A wavering or uneven fade can hint at strong resonances, dead spots, or sympathetic frequencies influencing the final fragments of the sound.

This final moment completes the note’s acoustic shape - the full contour of its behaviour from beginning to end. And at this point, we can step back and see the entire path that energy takes through the string, from its initial burst to its final release.

Summary of the life of the energy you put into the string…

1. Moment 1 — The Transient
The string receives a burst of kinetic energy.

2. Moment 2 — The Early Shift
That energy divides across the partials as the vibration settles.

3. Moment 3 — The Settled Tone
The energy reaches a stable pattern between the string and the body.

4. Moment 4 — The Bloom
Some of the energy stored in the body returns to the string.

5. Moment 5 — The Slow Fade
The energy drains unevenly as the higher partials lose strength first.

6. Moment 6 — The Final Disappearance
The last traces of energy dissipate as only the lowest partials remain.

Why These Moments Matter

Together, these six moments form the behavioural fingerprint of a guitar. They show how the instrument handles energy, how it shapes sound, and how it expresses itself across time. They are the foundation of timbre the acoustic shape of a note - and they are the first step in understanding how a guitar finds its voice when played.

All of this, of course, quietly assumes we’re using the same strings - a detail so easy to take for granted that it needs its own parallel conversation, which is coming soon in Stories of the Outer Craft (Wednesdays).

Using the Six Moments

This six‑moment approach is the framework I’ll use when listening to guitars in my own constellation and in instruments I meet along the way. It gives a consistent way to describe how a guitar behaves - from the first burst of energy to the final disappearance of the note - and it keeps the focus on what the instrument actually does, not on reputation or expectation.

Some guitars speak quickly, some settle slowly, some bloom, some reflect, some fade with grace, and some vanish abruptly. By listening through these six moments, each guitar reveals its own way of breathing. That’s the basis on which I’ll be writing about them.

Take-Away

Every note is the life of the energy you put into the string. The six moments simply reveal how a guitar handles that energy from start to finish. It’s a way of listening that makes each instrument’s voice unmistakable, and it’s the lens I’ll be using in the pieces that follow.

Timbre
Timbre is the acoustic shape of a sound - the pattern of harmonics, attack, bloom, sustain, and decay that gives a note its colour, scale, and sense of size. In a guitar, timbre is the way a note behaves from its first contact to its final fade: the distribution of partials, the speed of its bloom, the stability of its settled tone, and the character of its decay. All of this depends on the materials and design of everything from the strings to the neck and body. Timbre is the audible structure that lets us distinguish one guitar, one build, or one touch from another. It is the voice of the guitar when played.

The Story of Sound is a monthly series. If today’s article leaves you with questions, you’re welcome to join the conversation in the Story of Sound Reader’s Room →

© David Marshall. Original frameworks for My Guitar Blog/The Story of Sound. Attribution →

The answer was the chromatic scale: twelve equal steps. - The idea of dividing the octave into twelve equal parts didn’t begin with mathematics. Western music already had twelve pitch‑classes - seven diatonic degrees and five chromatic alterations - long before anyone thought in terms of frequency. But tuning those twelve pitches with pure intervals never quite worked: the cycle of fifths refused to close, and every temperament left something distorted.

In 1691, the Dutch mathematician Christiaan Huygens finally expressed the physics behind the problem musicians had been wrestling with for more than a century. If the octave is a doubling of frequency, and if you want twelve equal steps inside that octave, then each step must multiply the frequency by the same constant - the twelfth root of two.

That constant sounds abstract; it sounds complicated. But it’s like standing an egg on its end: once you see it, the idea is straightforward. We want a number that, when multiplied by itself twelve times, gives exactly 2 — the 2:1 frequency ratio that defines the octave.

Why do we divide twelve times into 2, and not into 1?
Because the octave isn’t “one unit long.” It’s a doubling. We’re not dividing the length of the octave - we’re dividing the doubling of the frequency from the first pitch to the pitch an octave above. So the thing being sliced into twelve equal ratio‑steps is the 2 in the 2:1 ratio. So the mathematical expression of that looks like this:

Solving that equation gives:

In everyday terms, that number is 1.059463. It’s a small, steady rise of about 6% of whatever pitch you’re currently on - the same proportional step each time. Each new pitch is vibrating a little under 6% faster than the pitch one step below it. Multiply any frequency by 1.059463 and you move up one equal‑tempered step, the smallest interval in our equally tempered scale. Multiply by it twelve times - twelve identical steps - and the frequency has doubled. That’s all the twelfth root of two really is: the constant ratio that slices the octave into twelve identical proportional steps of frequency.

To see this in action, start with the open A string at 110 Hz. Multiply by 1.059463 and you get the pitch one fret higher:

• 110.00 Hz × 1.059463 = 116.54 Hz (A♯ / B♭)

Multiply again:

• 116.54 Hz × 1.059463 = 123.47 Hz (B)

and you get the pitch the next fret higher. Continue the process - the same multiplication every time - and after twelve steps you arrive at:

• 110 Hz × 1.059463¹² ≈ 220 Hz

The frequency has doubled - and you’ve arrived at the octave in 12 identical steps - the 12 step equal tempered chromatic scale.

Chroma: a palette of pitch

This is where the word chromatic comes from. In Greek, chroma means colour a palette. The twelve tempered steps aren’t a scale to be sung from bottom to top; they’re a set of colours you can draw from to build the diatonic scales you may already know, that you may have learned at school.

The old modal scales didn’t disappear. They simply found a new home inside a system that made their intervals consistent, portable, and shareable. For the first time, musicians across Europe could work from the same set of pitches, in the same keys, on the same instruments, without wolves, distortions, or regional traps.

From mathematics to wood and metal
The same ratio governs the layout of the guitar fretboard. Start with the full string length - say 645 mm. To find the first fret, divide the vibrating length by the twelfth root of two (1.059463). That gives the remaining vibrating length, from the saddle, to the first fret: about 608.8 mm. The first fret is placed at that point.

Divide the remaining length by the same ratio for the second fret, and keep going. After twelve such divisions, you’ve marked twelve fret positions, and the remaining vibrating length is exactly half the original. You’ve reached the twelfth fret and the octave. Equal temperament, carved into wood and metal.

Take‑away
So the chromatic scale is not a melody or a mode. It’s the underlying map:

• twelve equal steps inside the octave,

• twelve equally proportioned slices of frequency.

A shared palette of pitches from which every modern scale, mode, and harmony is drawn.

Twelve pitches in the palette - but we only have seven names.
And that twelve pitch palette raises a new question; one that musicians have been quietly living with for centuries: Why do we only name seven of those twelve pitches? That’s where we go in next article, next week…

Temperament

A temperament is a tuning system - a way of spacing the steps inside the octave. Different temperaments divide the octave differently, each balancing purity, practicality, and the needs of the music. Some keep certain intervals pure but distort others; some spread the compromises evenly. Equal temperament is the modern system that divides the octave into twelve identical steps - the evenly spaced framework behind the modern chromatic scale.

Pitch‑class : A pitch‑class is a group of pitches that share the same musical identity across octaves. All the Cs belong to one pitch‑class, all the Ds to another, and so on. Medieval musicians didn’t use the term, but they worked with the idea: seven modal degrees, plus their chromatic alterations, gave Western music the twelve pitch‑classes we still use today.

If today’s article leaves you curious or wanting a little more breathing room, you’re welcome to join the conversation in the Story of Music Reader’s Room →

I woke to the cry of whatchadoin, whatchadoin, whatchadoin - a red‑whiskered bulbul outside my window. That’s how Mauritius says good morning. Twenty‑seven degrees at 7am, soft air drifting through the shutters, and the reminder that I’ve come a long way: a minimum of twelve hours in economy, a body that’s still somewhere over Istanbul, and hands that haven’t quite arrived yet.

I knew something was wrong the second I picked up the guitar. Just lifting it, with my left hand closing around the neck, told me the shape of my own hand had changed. Forming that first C chord - a shape that needs no thought - suddenly felt stiff, resistant, deliberate. I switched to a piece in G that lives in the first three frets, the one where my hand normally walks calmly across the strings. And even there, the alternating bass felt clumsy, as if I were wearing an oven glove. The nuance, the lightness, the tiny adjustments that make the pattern breathe - all of it was dulled. It’s the strange reality of long‑haul travel: your hands arrive a day later than you do, and until they catch up, the guitar reminds you that technique lives in the body as much as in the mind.

There’s always a moment, after a long flight, when the body reminds you it hasn’t quite arrived yet. You step into the heat, into the different light, into the softness of the air, and everything feels welcoming - but the hands lag behind. They hold on to the flight, the pressure changes, the stillness, the dry cabin air. You sleep, you drink water, you wake up in a new place, but the hands are still carrying yesterday. And as a guitarist you feel that delay more sharply than anything else. Before you’ve played a note, you know the climate has rewritten the way your fingers meet the strings. It’s a strange kind of jet lag: Not in the head, but in the touch.

And the heat adds its own layer. In a warm, humid climate the blood vessels open up, the body tries to cool itself, and fluid drifts into the hands and feet. It’s a quiet, persistent swelling - nothing dramatic, just enough to thicken the fingertips and slow the small movements. People arriving from cooler places feel it more sharply, and musicians feel it most of all. Even after the flight has worn off, the climate keeps its hand on you. Some mornings the fingers are a little puffy, a little slow, as if the air itself has weight. You learn to play with it, to warm up differently, to let the day’s temperature decide how the guitar will feel under your hands.

And yet, even as I sit here typing, the stiffness is already easing. An early walk along the beach has the blood moving again, the warmth loosening everything, the simple act of swinging my arms and pumping my hands helping the fluid shift. I know this pattern well enough now that I travel with two short‑scale guitars - a small concession to the reality that my hands arrive a day later than I do. One is deeply resonant, the other more reflective, and there’s a small irony in how they behave in this heat: the reflective one feels more intimate and responsive under the fingers, almost a little breathless, while the lush, resonant guitar can feel like too much until the hands have fully arrived. The shorter reach and gentler tension of both guitars give the fingers a little grace while they’re still waking up. And every so often I’ll pick up a guitar with a wider nut, like my Furch Pioneer, because the extra space between the strings can feel like a relief. It’s one of the reasons that guitar works so well for me as a travel companion: it meets my hands where they are, not where they are on a cool morning in Ireland.

And when the hands finally begin to return, the guitar tells you before anything else does. There’s a moment - sometimes after a walk, sometimes after the heat has settled into you, rather than pressed against you - when a single note rings clean again. The fingertip finds the string without hesitation, the thumb lands where it should, and the instrument feels like itself. Or rather: it feels like you again. The Mauritian air changes the sound in its own way - the warmth softens the attack, the humidity rounds the edges, the whole instrument feels a little more relaxed. It’s part of the quiet pleasure of playing in a new place: the climate gets into the wood, the air shapes the tone, and the body slowly tunes itself to the environment. When the hands finally catch up, the guitar opens, and you realise you’ve arrived twice - once at the airport, and once in your own touch.

A simple routine my medics recommend for helping hands and feet settle in the heat

Long‑haul travel and warm, humid climates can leave the hands and feet holding on to more fluid than usual. The two things my medical team suggested are simple, gentle, and easy to weave into the day.

🖐 Hand‑pump exercise

• Make a fist and hold it for four seconds.
• Open the hand fully, stretching the fingers wide, and hold for four seconds.
• Repeat this five times.
• Do the whole cycle several times throughout the day.

It’s small, quiet work - but it wakes up the muscle pump in the forearm and helps the hands feel lighter.

🌊 Cooling the feet and ankles

• Take an early morning walk with your feet and ankles in the sea or lagoon, when the water is at its coolest.
• In the evening, if the pool has cooled, dangle your feet in the water for a few minutes before bed.
• Wear a hat, loose clothing, and sandals during the day so the body can shed heat rather than hold it.

None of this is dramatic, but it’s enough to help the body settle into the climate and to keep the hands and feet from feeling heavy.

1. The Octave Is Simple — The Space Inside It Isn’t

What We Start With: A Clean 2:1

Music begins with the octave. One pitch vibrates exactly twice as fast as another, and that 2:1 ratio gives us the most stable, universal interval we have. Every musical culture recognises it; every instrument is built around it. But the moment we try to make music inside the octave, the simplicity ends. We suddenly need to decide where the other pitches should go.

Pitch, Notation, and What We’re Really Measuring

Before we can place anything in that space, we need to talk about what a pitch actually is. I’m going to use the word pitch rather than note here. A pitch is a vibration - a frequency in the movement of air. A note is just the name we write down afterwards. Tuning deals with the speed of vibrations, not symbols.

Intervals as Ratios

Once we’re thinking in terms of vibration, the next idea falls into place: an interval is simply the distance between two pitches. Musically, it’s how far apart they sound. Physically, it’s the ratio between their frequencies.

The octave is 2:1.

A fifth is 3:2 - the higher pitch vibrating one‑and‑a‑half times faster.

A fourth is 4:3 - roughly one‑and‑a‑third times faster.

These simple fractions give us intervals that feel clean, stable, and resonant.

No Natural Grid Inside the Octave

But the space inside the octave offers no natural guidance. There is no built‑in grid telling us where the other pitches should go. Different musical cultures made different choices: some carved the octave into a few large steps, others into many small ones; some favoured pure intervals, others favoured flexibility. There was no single, universal solution.

Why We Need Steps

And yet, if we want melodies, chords, scales, or even a tune as simple as “Happy Birthday,” we need more than the two ends of the octave. We need intermediate points. We need a way of dividing the space into steps.

A step isn’t a sound in itself. It’s a unit of measurement - a slice of the octave. And the whole point of choosing steps is that each one should be identical: a repeatable, predictable distance you can rely on no matter where you are in the octave or what key you’re in. Without identical steps, music becomes local, unstable, and unshareable - and as we’ll see, that was a continual problem for singers and musicians across Europe from the Middle Ages right through to the eighteenth and nineteenth centuries.

Where the Real Story Begins

So the octave gives us a clean starting point. But everything that happens inside it - every interval, every step, every choice about where pitches should sit - is where the story of tuning really begins.

2. The Central Difficulty

The moment you try to divide the octave, you run into the core problem: the octave won’t divide itself neatly. Every way of slicing it creates beauty in one place and tension in another. Pure intervals don’t fit together perfectly. Flexible systems don’t stay consistent across keys. Fixed‑pitch instruments demand stability; singers demand expression.

This single difficulty - how to carve the octave into useful, repeatable steps- is the thread that runs through the entire history of Western tuning, and it’s the reason your guitar ends up with twelve frets between the open string and the octave.

3. How Musicians Actually Experience the Problem

The difficulty of dividing the octave isn’t just a theoretical puzzle. Musicians have felt it in their bodies and their ears for centuries. If you sing English or Irish folk music, you’ve probably felt it yourself. Voices and unfretted instruments naturally lean toward the old modal intonations - pure intervals shaped by instinct, expression, and the physical resonance of the human voice. These intervals aren’t fixed; they flex and breathe with the melody.

Fretted instruments tell a different story. Lutes, citterns, mandolins, guitars, banjos - they fix pitches in place. A fret is a commitment. It says: this pitch lives here, and it lives here for every key, every chord, every tune. When flexible voices meet fixed frets, someone always sounds “out of tune,” even when nobody actually is. They’re simply using different maps of the same octave.

This tension runs deep in Western music. Medieval singers shaped their intervals by ear, bending toward purity and expression. Early organ builders, by contrast, locked pitches into place, sometimes in ways that clashed with the singers standing beside them. Renaissance lutenists needed frets that worked in every key they played in, even as harmony grew more adventurous and modal purity became harder to maintain. The problem wasn’t that anyone was wrong. It was that different musical worlds were trying to share the same octave while using different divisions of the space inside it.

Where theory meets the ear

And modern musicians still feel this. If you play guitar, you’ve probably sweetened your tuning without even thinking about it — pulling a third a little low to make a chord bloom, letting a leading tone sit a touch high so a melody feels alive, shading things differently in D than you do in G. Your ear tells you that the mathematically “correct” version isn’t quite right for the song. That instinct - the sense that the same pitch needs to sit in a slightly different place depending on the key or the mode - is exactly the same instinct that shaped Western tuning for centuries.

Long before equal temperament, medieval singers faced the same dilemma with the note we now call B. In some modes, the natural B created a harsh interval with F, so they instinctively lowered it - what became soft B, our modern B‑flat. In other modes, they kept it natural - hard B, our B‑natural. These weren’t accidentals in the modern sense. They were two different versions of the same note (but two different pitches), chosen to make the music feel right in its own context. And that choice - soft or hard, lowered or natural - is the medieval ancestor of the same choices guitarists still make today when they sweeten their tuning.

4. The Mathematical Heart of the Trouble: The Third and the Wolf

Once you start listening closely to intervals, one of them stands out as the real troublemaker: the major third. A pure major third - the one singers naturally gravitate toward - has a frequency ratio of 5:4, meaning the higher pitch vibrates one‑and‑a‑quarter times faster than the lower. It’s beautifully calm, resonant, and satisfying. But the moment you try to build a musical system out of pure thirds, the maths refuses to cooperate. Stack four pure major thirds and you don’t land neatly on an octave; you overshoot. Build a chord on a fretted instrument using pure thirds and something else in the harmony will start to wobble. The intervals that sound perfect on their own don’t fit together perfectly when you try to use them across different keys or different harmonic contexts.

This was exactly the problem that confronted Renaissance musicians. Singers wanted pure thirds because they sounded right. Lutenists and organ builders needed thirds that worked across multiple keys. And as harmony became more adventurous, the gap between what sounded pure and what worked practically grew wider. Meantone tuning emerged as a compromise - sweet, pure‑ish thirds in a few keys, at the cost of harsh “wolf” intervals in others. It was a system built around the beauty of the third, but it couldn’t cope with the expanding harmonic language of the time.

Modern guitarists know this problem instinctively. Tune your guitar so that a G major chord rings sweetly and your E major chord will often feel slightly off. Sweeten the E, and the G will complain. The instrument is caught between purity and practicality, just as the Renaissance theorists were. The pure third is too beautiful to abandon, but too unruly to organise a whole musical system around.

From Sweet Thirds to the Wolf

And when musicians tried to keep their thirds sweet, another problem appeared - the wolf interval. You’ve probably heard something like it yourself: a chord shape that sounds beautiful in one key but suddenly snarls or growls in another. That’s a wolf. It’s what happens when a tuning system tries to keep some intervals pure, but the maths refuses to let all of them fit neatly inside the octave. One interval ends up taking the punishment, and it comes out twisted, harsh, and unusable.

Meantone is a family of tunings that narrows the fifth slightly so the major thirds come out closer to pure; it gives you beauty in some keys and trouble in others. The more music wandered into new keys, the more that wolf howled. And that pressure - the need to escape the wolf - is one of the forces that pushed Western music toward a new solution.

5. The Pattern Behind It All - And Where It Leads

By now the pattern is unmistakable. Whether it’s a singer shading a third to make a phrase bloom, a medieval choir choosing between soft B and hard B, a lutenist wrestling with fixed frets, or a Renaissance theorist trying to tame the wolf, everyone has been facing the same underlying problem: the octave won’t divide itself neatly. The intervals that sound beautiful on their own don’t always fit together when you try to use them across different keys, different modes, or different instruments.

Every tuning system solved one part of the puzzle and created a new tension somewhere else. Pure intervals gave beauty but not flexibility. Meantone gave sweet thirds but punished you with a wolf. Modal practice gave expressive freedom but didn’t translate well to fixed‑pitch instruments. Fretted instruments gave stability but forced compromises singers never had to make. The whole history of Western tuning is a long negotiation between purity and practicality, expression and consistency, local beauty and shared structure.

And as music moved into new harmonic territory - more keys, more chords, more modulation, more freedom - the pressure grew. Musicians needed a way to move through the octave without running into wolves, sour thirds, or incompatible versions of the same pitch. They needed a shared map of the octave that worked for everyone: singers, organ builders, lutenists, violinists, composers, and eventually pianists and guitarists too.

That pressure is what pushed the West toward a new idea: a fixed set of identical steps inside the octave, a pattern that would let us move freely in any direction without the system breaking. Twelve steps that tame the wolf, smooth out the contradictions, and give every key the same internal structure.

Take‑Away

The octave is simple, but the space inside it isn’t. Every attempt to divide it - by singers, lutenists, organ builders, guitar makers, and whole musical cultures - created beauty in one place and trouble in another. Pure intervals don’t fit together perfectly, flexible ones don’t stay consistent, and no natural grid tells us where the pitches should go. The entire history of Western tuning is a long negotiation with that problem, and it’s this struggle that eventually pushed musicians toward a shared solution: twelve identical steps inside the octave. That pattern - the chromatic scale - is where the story goes next.

In the next article, the fourth in this series, we meet that pattern: The chromatic scale - the twelve‑step solution that finally gave Western music a stable, shared way of living inside the octave.

Interval — the distance between two pitches. Musically, it’s how far apart two pitches sound; physically, it’s the ratio between their frequencies. Simple intervals come from simple ratios - the same fractions we used when we first looked at the octave.

A quick note: From next week, the Story of Music will move to Saturdays. Sundays will become the home for a new lane -Stories of Sound - quieter pieces about touch, feel, climate, woods, and the physical voice of the instrument.

If today’s chapter leaves you curious or wanting a little more breathing room, you’re welcome to join the conversation in the Story of Music Reader’s Room →

First impressions
I wrote a short review on Amazon that still reflects how I feel. They are small, they stay hidden, and they never mark the wood. They are accurate too. I checked them against my Peterson strobe, and the readings were very close. The screen is simple, the response is quick, and the battery life seems steady. They are the kind of tool that disappears into the background because they do exactly what they should.

A small habit
After using them for a while, a few practical habits have settled in. The most reliable way to switch the tuner on is to use the thumb and index finger of my picking hand. I place my thumb on the D’Addario name so the tuner cannot shift or rotate. Then I press the ‘on’ button with the side of my index finger. The same movement switches it off. It is a small technique, but it works every time, and it feels natural on every guitar I have fitted with one.

Keeping myself honest
I still use my Peterson stroboscope. It is a way of checking myself as much as checking the tuner. When the NS Micro shows the note name with a blue line on each side, the tuning is usually spot on. It is reassuring to see that consistency across different instruments and string sets.

A steady pitch centre
The tuner also lets you adjust the reference pitch. I leave mine at 440 Hz because that is the standard for A4 and it keeps everything aligned with the way I play, teach and record. It is the same pitch I used in the octave post here on @myguitar, and the same pitch I use when checking with the Peterson. I like having that fixed point. It gives the whole instrument a sense of centre, and it helps the ear settle into the shape of the tuning.

One small quirk
There is one small quirk worth mentioning. When I pluck an open E, the tuner sometimes flickers and briefly shows a B. That is not a fault. It is the tuner catching a strong harmonic before the fundamental settles. The fifth of E is B, and on some guitars that harmonic can be very clear. Once the note stabilises, the tuner locks onto the correct pitch.

A closer look
I’ve included a few photos to show how the tuner sits on the guitar. One of the box gives a sense of scale. A front view shows how discreet it is. A player’s eye view shows what you actually see when tuning. A final shot shows the size and simplicity of the unit. Together they tell the story of this useful little tuner.

This is a small piece of gear, but it has become part of my daily playing. It keeps the guitars ready, it stays out of the way, and it earns trust through accuracy rather than features.

The simplest demonstration in music
Pluck a string, and you get a note. Fret the midpoint of that string and pluck again, and you get the same note, but this time, it’s an octave higher. That’s the first ratio in Western music 2:1.

And for most of musical history, pitch was understood through length.
• Halve the string and you get the octave – ½ = a ratio of length 2:1

And if you keep going - playing the string in fractions…
• Two‑thirds of the length gives you the fifth – ⅔ = a ratio of length 3:2
• Three‑quarters gives you the fourth – 3/4 = a ratio of length 4:3

So musical notes were defined as a fraction of the length of the string you started with. (more or less). These were then expressed as ratios, and ½ becomes 2:1

A brief historical hinge: When music became multi‑voiced
For centuries, Western music was plainchant or plainsong - a single melodic line sung by every voice in a choir in unison. But around the year 1000, manuscripts started to show something new: two lines sung together. Polyphony had arrived, and with it came the first real pressure on the old tuning systems. Those simple length ratios had served plainsong well, but once music became multi‑voiced, they were no longer enough. The system had to evolve.

Eventually, around the 17th and 18th centuries, something shifted. We began to understand pitch not just as the length of a vibrating string, but as frequency - specifically how many times a second a string, or a column of air, vibrated. The ratios stayed exactly the same, but their meaning changed. Instead of 2:1 describing two lengths, it now described two speeds of vibration. The octave moved from geometry into acoustics.

Now we can say that: the octave is simply one vibration moving twice as fast as the other. And that for each and every octave, the frequency of the vibration doubles. That’s the whole secret.

This shift will matter later, when we look at how Western music ended up with twelve steps (frets on your guitar), seven note names, and the familiar bewildering pattern of sharps and flats.

What vibration really means
Every musical note is a vibration. Vibrate the air, it vibrates your ear, and you hear a sound. Now, lots of things can vibrate; the skin of a drum or a bodhrán, the metal plates of cymbals, columns of air in wind instruments; and especially the strings and the body of your guitar. What matters is what those vibrations do to the air. They push and pull it, making tiny changes in air pressure. Those tiny changes travel outward, until they reach your ear - then it becomes sound; and the vibration of strings on your guitar has become music.

We measure the frequency of those vibrations. How many times does a string vibrate in a second. That gives us a number, 110x, 220x, 440 times a second and more. We usually call them Hertz, to honour Heinrich Hertz, who helped us understand how the vibrations (waves) behave. If I tell you that your plucked open 5th string vibrates at 110 Hz, you know I’m telling you that when you pluck it, it’s vibrating 110 times a second. And you hear an A note.

The take-away
For now it’s enough to know that pitch is simply frequency - the speed of vibration. The faster the vibration, the higher the frequency - the higher the pitch. And the octave is the simplest of all musical relationships: two tones linked by a doubling of vibration. One note vibrates at a set number of times per second - say 110Hz - and the next sits exactly at twice that, 220Hz. That’s the octave.”

Before we move on next week, it’s worth defining two terms clearly…

Octave — the interval between two pitches where the higher vibrates at exactly twice the frequency of the lower.

Pitch — the perceived highness or lowness of a sound, determined by its frequency (vibrations per second, measured in Hertz).

If today’s chapter leaves you curious or wanting a little more breathing room, you’re welcome to join the conversation in the Story of Music Reader’s Room →

Every musician has one instrument that becomes part of their life’s weather. For me, it was this 1973 Guild D‑40 - I called her Eliza-Ellen. The story that follows is not about a guitar so much, as the life that gathered around her - and the quiet grace of letting her go.

The first time I played Eliza‑Ellen in public was in a field near Llangollen, North Wales. One of those half‑organised festivals where the stage is a pallet and the audience is a scatter of blankets. Someone in a Birkenhead accent shouted, “Play us a tune, la…” So I did. Three of them. Alternating bass, a bit of slide, and a Donovan pop tune I’d only just worked out. It was the first time I felt her open up in front of strangers, and something in me recognised the feeling, not as a beginning, but as the moment when a long, private hunger finally made itself heard.

I’d been chasing that sound for years without knowing it. At twelve I borrowed my first acoustic guitar, and two years later, in Valencia, I bought one of my own for around 450 pesetas. About £5 at the time, roughly ten weeks’ wages from my part‑time job. It wasn’t much of a guitar, but it didn’t need to be. Those two instruments, the one borrowed and the one bought, were the beginning of everything.

Those guitars carried me through my teens, and by my mid‑twenties I’d played enough smoky rooms, student bars, and borrowed stages to know what I could do with an instrument that answered back. Eliza‑Ellen was that guitar. She arrived at the right moment. A Guild D‑40 with a voice that felt older than I was; and together we found ourselves on a small stage one night when everything aligned.

I was twenty‑five, and she was strung with the newly released D’Addario Phosphor Bronze 1356s, driven by Jim Dunlop steel picks so new they still had “patent pending” stamped on them. I was playing that Carolina‑style alternating bass I’d learned from sitting on the corner of the stage in Les Cousins a few years before. I cracked a line I’d stolen from Stefan Grossman - “I’m going to play my six‑string piano here…” - and later, “I’ll be playing so fast I’ll be packed up and gone before you finish hearing it.” I was full of it, yes, but it was joy, not swagger. I was on fire.

What I didn’t know, not until afterwards, was that my parents were in the audience. They never said they were coming. They just turned up. And the next day my father said quietly, almost awkwardly, “I’m so sorry we didn’t get you piano lessons.” He was picking up on the “six‑string piano” line, of course, but what he was really saying was: I see you. I hear what you’ve made of yourself. I didn’t know you could do that. That moment has stayed with me far longer than the applause.

My father died seven years before I met Shash, but that quiet apology, that moment of being seen, stayed with me. It settled into me in ways I didn’t fully understand at the time. It became part of how I recognised other people who carried that same spark. And when Shash arrived in my life, years later, I recognised it in her immediately, as if something in me had been tuned for it long before we met.

When I finally met her, all the jangling in my head fell silent. It was as sudden as someone putting a hand on a set of vibrating strings. I knew in that first moment, before we’d even spoken properly, that I wanted to spend the rest of my life with her. It wasn’t dramatic or cinematic. It was simply the same kind of recognition I’d felt on that stage years earlier, when my father saw me clearly for the first time. Something in me had been tuned for this long before I understood what I was listening for.

She was twenty, working as a waitress in a cocktail bar, finishing her degree. I was forty, carrying more miles and more music than I knew what to do with. Nine months after we met she graduated, and by then the silence she’d brought into my life had settled into something steady and unmistakable. My first serious gift to her was a pair of hiking boots - practical, hopeful, a way of saying I wanted us to walk the same ground for a long time. The second was a piano. The instrument my father never gave me became the one I gave to her, not because I needed it, but because music had always been the truest language I had for love. It felt like closing a circle he had opened years before, without either of us knowing it.

Music wove itself into our life together. Shash is Creole, and early on together with Eliza-Ellen, I played her My Creole Belle - The venerable Mr Lampe’s tune, carried into the world by Mississippi John Hurt. Something in it spoke to her at once, as if the melody recognised her before I did. From that first evening it became her tune, the one she would quietly ask for in the years that followed.

Life carried us forward, as it does, into work and travel and the slow accumulation of years. I made my living as a writer - a good living, one that opened doors to places I’d never have reached otherwise - but it wasn’t just the assignments that moved me. Shash had a way of opening the world too, simply by being in it. Her curiosity, her steadiness, the way she met new places without flinching - all of it pulled me outward as surely as any commission ever did. And through all of that, the guitar travelled with us. Not as a prop or a pastime, but as the one voice that stayed steady when everything else was shifting. Whatever country we were in, whatever room we found ourselves in, Eliza‑Ellen was there, leaning against a chair or lying open in her case, waiting for the moment when I needed to hear something true again.

Through all those years, the travel, the work, the places we found ourselves in, Eliza‑Ellen stayed with us; steady as a heartbeat. But time has its own way of shifting the ground under your feet, and over time I realised that she and I had begun to live different musical lives. The emotional connection was still there, deep as ever, but the everyday voice I reached for had changed. My hands were listening for different things now: more focus, more clarity in the partials, a different kind of truth. And Eliza‑Ellen, faithful as she’d been, belonged with someone who would love her in the way I once had, someone she could come alive with on stage again.

In the end, letting her go was less a decision than an acknowledgement of something that had already happened. I’d changed, my playing had changed, and the guitar I reached for each day was no longer the one that had carried me through smoky rooms and long roads and all the wild places we’d found ourselves in. Eliza‑Ellen deserved more than to sit waiting for a voice I no longer had. She needed someone who would take her out into the world again, someone she could open up for the way she once opened up for me. And she found him - a gigging musician in the southwest of France, young enough to play hard and often, old enough to understand what he was being given. When I handed her over, there was no drama, no ache, just a quiet sense of rightness. She was going back to the life she was built for, and I was walking forward into the one I’d grown into. Some things you hold on to; some things you honour by letting them go.

Skerries… as the sun came up over the Irish Sea and I reached the end of this story, a clear morning carried the quiet truth that some things are meant to move on.

Eliza‑Ellen: the guitar herself

She is a 1973 Guild D‑40, built in the era when Guild were at the height of their American craft. Hand‑voiced Sitka spruce top, North American mahogany back and sides, a neck that felt like it had been carved for my own hand. Her bracing had been taken down by hand in that old Guild way - the tone bars left so light they are almost suggestions rather than structures - and after fifty‑three years the whole top has settled into one piece, resonating as a single surface rather than in sections. She has that unmistakable Guild voice: dry, woody, punchy in the midrange, with a sweetness on top that never turns brittle. She is a songwriter’s guitar, a stage guitar, a guitar that rewards attack and clarity. She loves alternating bass, she loves open tunings, she loves being driven. She has a bark when you dig in and a whisper when you don’t. She was, in every way that mattered, a partner.

Being human means being social, and being social means culture -the shared patterns we build together, from language, to art, to music. Through travel I’ve encountered an astonishing variety of musical forms and ways of listening. And travel has taught me this: that beneath that fruitful explosion of diversity, we all share the same raw machinery of hearing. For everyone who hears music, it doesn’t matter where we were born or what musical language we sing: - we respond in the same way to certain moments in sound. There is a quiet inevitability to it. And even before we can name it, there is one such moment that almost every ear will recognise.

That moment is the octave. The simplest relationship in sound, and somehow the most mysterious: One tone rising into another that feels both different and deeply connected. We meet it long before we understand it, and it becomes one of the quiet foundations of how we hear.

What makes the octave so powerful is its simplicity. When one vibration moves at exactly twice the speed of another, the ear settles. The sound locks in. Even without training, even without a musical vocabulary, most of us sense that these two tones belong to the same family. They’re not identical - one is clearly higher - but they carry a shared identity, as if they were two versions of the same thought.

People have noticed this for a very long time. The Greeks certainly did. Pythagoras made his discoveries working with a single string stretched over a wooden box. He plucked the string and it gave him a note. Then he found that if he cut the length of the string in half, it didn’t give him a new note at all. It gave him a higher echo of the note he already had. That simple observation - a length of string, and a string half that length - became the seed from which Western music systems grew.

Once you accept the octave as a kind of foundation - a frame that captures the way we hear music - everything else follows. The chromatic scale becomes a way of dividing that frame into steps. Diatonic scales let you organise those steps into moods and colours, giving shape to melody. Chords become the vertical structures we build inside the frame. Instruments are built around it. The guitar’s fretboard is literally a map of how we’ve chosen to carve up the space between one octave and the next. Every fret, every interval, every chord shape you know is a decision about how to live inside that frame.

So, the octave isn’t just another interval. It’s the boundary of the world we build our music in. And once you see it - once you feel how simple and how inevitable it is - the whole landscape of the guitar starts to make a different kind of sense.

Part 2 - Enigma Made Easy comes next week.

If today’s chapter leaves you curious or wanting a little more breathing room, you’re welcome to join the conversation in the Story of Music Reader’s Room →

I played a Yamaha guitar today.
The acoustic equivalent of a well‑made beige jumper.
Solid. Reliable. No surprises… And sadly - no stories spun into the wool.

I picked up a budget Taylor.
A jumper with a colourful knitted pattern on the front, tight rib cuffs.
A bit of flair. A bit of “designed for comfort and optimism.”
Still mass‑produced, but with a smile knitted in.

Me…
I’m wearing 100% Irish wool, knitted in Mayo.
A blue marl hooker‑skipper’s sweater: 1×1 rib, plain neck and cuffs that roll up…practical, weather‑ready… paired with a blue duffel coat.
That’s not just clothing.
That’s identity, heritage, and purpose.
It’s the opposite of beige.
It’s the opposite of mass‑produced optimism.
It’s lived‑in, local, functional, and quietly expressive.

…And here’s the lovely thing: my guitars mirror my knitwear.
They’re not beige… not patterned for effect.
They’re built for weather, story, and work.

Today, I will be playing mainly Irish wool,
whilst I watch the sea tell me why.

This is a slow‑growing map of the ideas I’ll be exploring over the next while; from the fundamentals of sound, to how guitars develop their voices, to the way I visualise my own instruments as a constellation. Think of it as a guide to where we’re heading on @myguitar, one small idea at a time.

I. Foundations of Sound

How music works before we get clever.

• The Octave: Nature’s First Agreement
• Man‑Made Notes and the Tempered Scale
• Melody and Harmony: Two Ways of Telling a Story
• Chord Structures: How We Stack Meaning
• Nashville Numbering and Other Practical Maps

These pieces set the groundwork -the simple physics and human decisions that shape everything we hear.

II. The Three Voices of a Guitar

What makes a guitar sound like itself.
• House Sound - Why brands have recognisable voices,
and how design philosophy becomes audible.
• Shape Sound - How body shape defines projection, balance, and personality.
• Wood Sound - How materials colour tone, and why two “identical” guitars never sound the same.
• Resonant vs Reflective -What the top does, what the back does, and how they work together.
These posts teach the ear how to listen to a guitar with intention.

III. The Envelope of a Plucked Note

The biography of a single sound.
• What the Envelope Is (and Why It Matters)
• Transient: The Guitar’s Handshake
• Sustain: The Story Being Told
• Decay: The Guitar’s Personality Revealed
• Tail: The Emotional Afterglow
• How Envelope Shapes Your Playing Identity

IV. The Constellation

How I map my own guitars.
• Why I Have a Constellation (Not a Collection)
• My Three Axes: How I Visualise Guitar Voices
• How House/Shape/Wood/Envelope Fit Into the Map
• Choosing What to Play: Navigating the Constellation
• A Living System: Guitars Entering and Leaving

V. Guitar Stories

The stars themselves.
• Guitar Story #1 — Why This Instrument Is in My Constellation
• Guitar Story #2 — A Different Voice, a Different Part of Me
• Guitar Story #3 — The Outlier, the Anchor, or the Surprise
• Naming Guitars: Emotional Lineage and Identity

VI. Gear & Travel

The practical life of a musician on the move.
• Crossrock Glassfibre Case Review
• Flying with a Guitar on Ryanair (Including Buying a Seat)
• Travelling with Instruments: What Actually Matters
• Case Fit as a Form of Respect
• Other Gear Reviews as They Arise

Short pieces that may appear between the arcs… on practice, place, sessions, wood as biography, or anything else that belongs in the wider world of @myguitar. And maybe, I’ll be lucky and get to tell stories from other guitar players - fingers crossed.

That moment changed how I travelled. From then until now, I’ve always bought the guitar its own seat. That’s not indulgence; it’s insurance. A guitar is a strange companion; part tool, part voice, part diary; and once you’ve seen a case come back looking like it’s been through a small war, you don’t take chances.

But this weekend I was flying Ryanair for a 45‑minute hop, and the economics were absurd: £247.93 for a seat, £60 in the hold. And Éala and I, if I’m honest, haven’t fully bonded yet. I like her, I enjoy playing her, but we’re not in that deep, instinctive place where every mark would feel like a mark on me. So I made a decision I haven’t made in nearly a decade: I put a guitar in the hold again.

I didn’t take chances with the packing. Éala went foam‑wrapped into the SKB case, snug and secure. The case went into a cardboard frame to stop the neck drifting, and that went into an even bigger cardboard box padded with what felt like acres of bubble wrap. “Fragile - Instrument” stickers everywhere. The flight number taped to the outside like a hospital wristband.

There’s a particular feeling that comes with handing a guitar over at check‑in. You’ve loosened the strings, padded the headstock, checked the latches twice, and now you’re giving it to someone who doesn’t know what it means to you. You watch it disappear down the belt and think, Right… see you on the other side.

I should say this: the airport staff and airline crew were excellent throughout. Helpful, patient, and careful. The tension was all mine; the product of memory, imagination, and the strange way musicians project meaning onto wooden boxes with strings.

It’s a small act of trust, or maybe a small act of denial. Either way, it’s a moment.

Severe weather across Europe delayed the plane arriving at East Midlands. I tracked the package on its wireless tag as it moved through the airport; or didn’t. At one point a message popped up: “We can’t guarantee your baggage is in this location.” The usual get‑out clause, but it doesn’t help the nerves. Eventually the plane arrived. I boarded. I watched anxiously for the little “train” of luggage approaching the aircraft, scanning for the big cardboard box with the red‑and‑white FRAGILE tape nursing its seams.

The Journey Home

Dublin: the journey from Kalamazoo (the nickname for the most extreme gates of Terminal 1), and through passport control, is interminable. Then, after baggage reclaim, there’s that strange, suspended moment where you’re reunited with the carton but not yet with the guitar. You lift it off the belt, feel the weight, check the corners and the ends. Everything looks fine, but you don’t really know. Not yet.

Then it’s a glide through customs; after Brexit they wanted to charge me import duty every time I landed home with a guitar from the UK — and then, on to the shuttle bus to the Red Car Park. Anyone who knows Dublin Airport knows that the bus circles the terminals twice and hits every sleeping policeman the airport authority can spare. The carton was too big to stand upright between my knees, so it sat in the luggage rack among an anarchic pile of anonymous suitcases. Every bump made me wince and silently bless the driver.

Off the bus, across the car‑park desert with the pedalboard on my back and the guitar‑box strap in my hand. The strap snapped. My heart leapt. My foot caught the carton before it hit the tarmac. A small mercy.

Finally, the car. A short drive home by a very angry sea, the wind coming straight from Brittany. The guitar lay quietly in the back like a passenger who doesn’t speak.

At home, the wind was fierce enough to make lifting the carton from the car a challenge. Guiding it through the garden gate and into the house felt like a final test. By the time I got inside it was dark, late, and I was emotionally exhausted from what should have been a simple commuter journey.

I laid Éala, still boxed, gently on the leather couch and decided to let her temperature catch up overnight.

This is such a small thing in the grand scheme of life, but for a musician it’s a very particular kind of suspense, the kind you feel in your chest more than your head.

The Morning After

The next morning the blinds were open, the sea was calm, the wind gone. The sun was rising, its warm light spilling through the long windows. I made an espresso and began dismantling the packaging.

The outer box was untouched. No dents. No punctures. Customs hadn’t opened it. The humidity and temperature gauge inside the case showed everything was within limits.

The black fabric cover slipped off the SKB case. I moved the packaging aside. Still reclining on the sofa, I flicked open the TSA locks.

For a split second my stomach dropped, Éala looked like a patient in a battlefield hospital ward. Then I remembered: I’d wrapped her in a large sheet of fine foam to stop any movement. I eased her up, the foam fell away, and a single crepuscular ray from the window struck the fiddle‑back maple. She gleamed.

I checked every part of her. Perfect. Tuned her up. Leaned into a tune. She sounded exactly like herself.

Heart rate returning to normal, I played a couple more tunes before returning to my espresso and breakfast.

A Quiet Epilogue — and March on the Horizon

Sitting there with Éala safe on my knee, the sea calm again and the morning light warming the room, I realised how much of this little drama had lived entirely in my chest. Ninety percent imagination, ten percent risk, and a lifetime of knowing what a guitar means to a musician. She survived the journey without a mark, but the tension of it; that stays in the body a while.

And the story isn’t quite finished. In March I’ll be flying through Istanbul again - twice, in fact. The same airport where my SKB case once came back looking like it had been dropped from the sky. I have the baggage allowance to put Éala in the hold, but the decision isn’t automatic. It never is, once you’ve lived both sides of the equation: the disaster narrowly avoided, and the quiet relief of a guitar emerging unscathed.

Maybe this weekend was a rehearsal. Maybe it was a reminder that most journeys end without incident. Or maybe it was just a small, necessary test of trust before the bigger crossing in March.

Either way, La Madeline, my baby dreadnought, is waiting at the far end of the journey, and that big cardboard box from the EMA–DUB hop is folded neatly in a box‑room corner. I still haven’t decided which is the wiser tune.

Bridge pins are one of those tiny components that somehow attract outsized debate. Some players insist they change the whole feel of a guitar; others say they’re basically along for the ride.

Pau Ferro is a dense, stable hardwood, and in theory that extra mass and stiffness can shift how energy moves from the strings into the top. Coming from basic plastic pins, the usual expectation is a slightly firmer attack, a touch more clarity, and maybe a bit more focus in the low end. Nothing dramatic — more like tightening the picture rather than changing the voice.

Whether that’s physics, perception, or a mix of both is a conversation for another day. For now, I just like the idea of matching a Pau Ferro bridge with Pau Ferro pins and seeing what happens under the hands.

First Impressions After Fitting the Pins

Before changing the pins, I played a few pieces that really expose Éala’s voice — Coffee Blues, Stagolee, and M&O Blues— all on my usual NB1254 custom set. That set is already part of her signature feel, so it gave me a consistent baseline to hear what the pins were actually doing.. And these tunes are perfect for hearing how the trebles behave and how the bass sits in the pocket. Then I played them again, same chair, same spot, same touch.

With the original plastic pins, I’ve always liked the sparkle in the trebles, but there was also a kind of “shaking a bag of nails” quality right at the very top — as if the highest harmonics were slightly jangled, not quite in agreement with each other. A bit of air, a bit of chaos.

With the Pau Ferro pins, some of that air has gone, but what’s left feels calmer. The trebles are rounder and a little more bell‑like. They’re not as forward as before, but they’re easier to listen to. The whole guitar feels less tiring — more like an old valve radio and less like an old transistor. Subtle, but noticeable.

For anyone curious, I picked these up from Small Wonder Music in Sussex, England — lovely people, quick delivery, and a great selection of pins in different woods.

More to come once they’ve settled and are played in.

My playing wanders across styles: country blues, singer‑songwriter things, and the occasional bit of trad rhythm. Some weeks I’m working on a tune, other weeks it’s a guitar setup, a pick experiment, or a thought about sound.

I’m also hoping to share some of the musical understanding I’ve picked up over the years — the kind of things that never came easily at the start. Where notes come from. Why the octave works the way it does. How the tempered scale emerged. What it means to “hear” a key. Why boogie‑woogie feels the way it does, with its triplets and that lovely sixth in the bass. Nothing heavy or academic — just clear, friendly explanations of things I wish someone had told me earlier.

If you’ve found your way here, you’re very welcome. I’ll start slowly — a few posts, maybe a clip or two — and see where it goes.

Thank you for reading - and be kind to yourself, and your guitar.
David, sometimes Dáithí.