Writing Harmony
There's a particular sound — Pieter Nooten's writing in Clan of Xymox, the chords under a Cocteau Twins record, the harmony in a lot of what came out on 4AD — that people describe as classical or cinematic without being able to say why. It isn't mystical and it isn't advanced. It comes down to a handful of specific habits, most of which are about the lines between the chords rather than the chords themselves. Build these in the Harmony Workbench as you read.
It's the Voices, Not the Chords
Two songwriters can use the identical four chords and one sounds like a campfire and the other sounds like a requiem. The chords are not what differ. What differs is how the individual notes move between them — and specifically, how many of them hold still.
Strum A minor then F major on a guitar and you've played two shapes. Voice them so that A and C stay exactly where they are and only one note moves down to F, and you've written a line. The ear follows lines. It hears a chord change as an event when everything jumps, and as a transformation when most things stay and one thing slides. Transformation is what sounds inevitable, and inevitability is most of what people mean by "classical."
Hold what you can
Any note shared between two chords should stay in the same voice. Am and Fmaj7 share three notes. Voiced properly, that change is one note moving.
Move by step
When a voice must move, a semitone or tone beats a leap. Whole progressions built from held notes and steps feel like one continuous fabric rather than a series of grabs.
Let the bass do the leaping
The bass is allowed to jump — it's a separate voice with a different job. The inner voices are where smoothness matters, and they're the ones nobody thinks about.
Contrary motion
When the bass descends and an upper voice rises, the harmony opens. It's the single most reliable way to make a change feel bigger without adding anything.
This is why the Workbench draws the four voices rather than printing chord symbols. Load the descending lament preset and look at it: every voice moves by one step, in parallel, and that is the entire reason it sounds the way it does.
Suspensions and Added Notes
A suspension replaces the third of a chord with the note above or below it — sus4 or sus2 — which removes the one note that tells you whether the chord is major or minor. Traditionally it resolves down to the third a beat later. The move that defines a great deal of atmospheric music is simply not resolving it.
| Colour | What it is | Effect |
|---|---|---|
| sus4 | The 4th in place of the 3rd | Tension leaning forward. Wants to fall to the third — so don't let it |
| sus2 | The 2nd in place of the 3rd | Open, weightless, neither happy nor sad. The sound of a lot of 80s guitar |
| add9 | The 9th alongside the third | Keeps the chord's identity but adds shimmer. The most useful of the three |
| m(add9) | A minor chord with the 9th added | Melancholy with a glassy edge. Very Nooten, very Cocteaus |
| m(maj7) | Minor triad with a major 7th | Unstable, filmic, unmistakably classical. Use sparingly and it's devastating |
The reason added ninths sound "classical" rather than "jazzy" is placement. A jazz voicing stacks the ninth near the top as an extension. If you instead put the ninth in an inner voice, a step away from a note that just moved, it reads as a passing line rather than a colour — and that's a nineteenth-century habit, not a twentieth-century one.
♭VI, ♭VII and the Borrowed Chords
Natural minor contains three major chords that pop and rock rarely use as anything but passing colour: ♭III, ♭VI and ♭VII. In A minor those are C, F and G. Lean on them and the music stops sounding like a minor-key pop song and starts sounding modal and old.
♭VI — the ache
F under an A minor tonality. It shares two notes with the tonic, so it arrives almost without moving, and it's the warmest chord available in a minor key. As ♭VImaj7 it shares three.
♭VII — the lift without resolution
G in A minor. It behaves like a dominant but has no leading tone, so it lifts without promising a resolution. That refusal is the modal sound.
♭III — the relative major
Somewhere to go that feels like light without being a modulation. Reach it and the piece opens up; leave immediately and it reads as a shaft of light rather than a key change.
V (major) — the classical exception
Raising the seventh to get a real dominant is what harmonic minor is for. Amid all that modal softness a proper V lands like a door closing — which is why it works best once, at the end.
Two other borrowings worth knowing. iv in a major key — the minor subdominant — is the single most emotionally reliable chord in popular music; it's the chord that makes a bright song suddenly ache. And the Neapolitan (♭II), a major chord built on the flattened second, is pure nineteenth century: unexpected, dramatic, and it resolves beautifully to V.
The Descending Bass
A bass line that walks steadily downward carries a piece all by itself. It's been doing so since the seventeenth century, where it was literally called the lament bass — the descending tetrachord from the tonic to the dominant, i ♭VII ♭VI V, used for exactly the emotion the name suggests.
It works because it gives the ear an independent line to follow underneath the harmony. The chords above can do more or less anything; as long as the bass keeps stepping down, the passage feels purposeful and inevitable. Pachelbel's canon, "Hit the Road Jack", flamenco's Andalusian cadence, half of darkwave — all the same descending idea.
| Descent | In A minor | Character |
|---|---|---|
| Diatonic lament | Am – G – F – E | The classic. Grave, formal, resolves hard on the major V |
| Chromatic inner line | Am – Am(maj7) – Am7 – F | The bass holds while an inner voice descends A–G♯–G–F♯. Hitchcock, Bond, Nooten |
| Slow modal fall | Am – G – F – G | Never reaches the dominant, so it can loop forever. The ambient option |
| Bass under a held chord | Am – Am/G – F – E | Inversions instead of new chords — maximum motion, minimum change |
That second one deserves attention. Holding a chord while a single inner voice creeps down chromatically is possibly the most effective four-bar move in this entire vocabulary — nothing changes and everything changes. It's in the Workbench as Chromatic inner.
Pedal Points and Drones
The inverse move: hold a bass note still and change the harmony above it. Every chord that passes over a held tonic is coloured by it, so ordinary progressions acquire tension and ambiguity for free. A pedal is why so much film music can stay on one note for a minute and still feel like it's building.
Drones do the same at the level of an entire piece, and they are the oldest device in Western music — organum, bagpipes, tanpuras, Dead Can Dance. Once a drone is established, any chord you play against it is judged by its relationship to that one note, which means very small changes read as very large events. It's the harmonic equivalent of the restraint argument: emptiness makes the next thing enormous.
What Pieter Nooten Actually Does
Nooten's writing in Clan of Xymox — and on Sleeps with the Fishes, his 4AD record with Michael Brook — is a good study because it uses a small vocabulary very consistently. Listening to it with the above in mind, the recurring habits are:
Natural minor, not harmonic
The leading tone is mostly absent, so cadences don't slam shut. Progressions circle rather than resolve, which is why the music feels suspended even when it's moving.
Added ninths everywhere
m(add9) as a default rather than an ornament. It's what gives those synth pads their glassy, bell-like top without brightening the harmony.
Inner voices carry the tune
The interest is frequently not in the top line. A held pad with one middle voice moving is a Nooten signature, and it's a nineteenth-century keyboard habit far more than a rock one.
Long, slow, few chords
Two or three chords held for bars at a time. The harmony isn't dense — it's given time, which is what lets small colour changes register at all.
The general lesson transfers past the reference: a classical sound comes from restraint plus voice leading, not from complexity. Four chords, moved smoothly, held long enough to be heard, with one inner voice doing something — that's the whole recipe, and none of it requires knowing any theory beyond what's on this page. The rest of that world's sound is production, which is the 4AD story.
Applying It
| Exercise | What it teaches |
|---|---|
| Revoice a progression you already have | Same chords, minimum motion between them. The fastest possible improvement to anything you've written |
| Write the bass first | Four descending notes, then find chords over them. Backwards from how most people write, and much better |
| One chord, moving inner voice | Hold a minor triad for four bars and walk one middle note down chromatically. Hear how much happens |
| Ban the third | Write using only sus2, sus4 and power chords. Ambiguity as a discipline |
| Three chords, eight bars each | Force yourself to hold. Most amateur harmony changes far too often to be felt |
| Steal a bass line | Take the bass from something you love, write new chords over it. Nobody will recognise it |
Everything here is playable in the Harmony Workbench — the presets are named after the moves on this page, and the voice display will show you exactly which notes hold and which step. Then take the result to the Synth and give it a pad worth holding.
Hold every note you can. Move the rest by step. Use ♭VI and ♭VII and stay out of harmonic minor. Put the ninth in an inner voice. Walk the bass down. Then hold each chord twice as long as feels comfortable.