diff --git a/packages/core/pattern.mjs b/packages/core/pattern.mjs index 4874a35f1..34a63c931 100644 --- a/packages/core/pattern.mjs +++ b/packages/core/pattern.mjs @@ -1023,6 +1023,7 @@ function _composeOp(a, b, func) { div: [numeralArgs((a, b) => a / b)], mod: [numeralArgs(_mod)], pow: [numeralArgs(Math.pow)], + log2: [numeralArgs(Math.log2)], band: [numeralArgs((a, b) => a & b)], bor: [numeralArgs((a, b) => a | b)], bxor: [numeralArgs((a, b) => a ^ b)], @@ -3112,3 +3113,25 @@ export let xfade = (a, pos, b) => { Pattern.prototype.xfade = function (pos, b) { return xfade(this, pos, b); }; + +/** + * creates a structure pattern from divisions of a cycle + * especially useful for creating rhythms + * @name beat + * @example + * s("bd").beat("0:7:10", 16) + * @example + * s("sd").beat("4:12", 16) + */ +const __beat = (join) => (t, div, pat) => { + t = Fraction(t).mod(div); + div = Fraction(div); + const b = t.div(div); + const e = t.add(1).div(div); + return join(pat.fmap((x) => pure(x)._compress(b, e))); +}; + +export const { beat } = register( + ['beat'], + __beat((x) => x.innerJoin()), +); diff --git a/packages/core/signal.mjs b/packages/core/signal.mjs index 36f07df54..51aac609c 100644 --- a/packages/core/signal.mjs +++ b/packages/core/signal.mjs @@ -5,7 +5,7 @@ This program is free software: you can redistribute it and/or modify it under th */ import { Hap } from './hap.mjs'; -import { Pattern, fastcat, reify, silence, stack, register } from './pattern.mjs'; +import { Pattern, fastcat, pure, register, reify, silence, stack } from './pattern.mjs'; import Fraction from './fraction.mjs'; import { id, keyAlias, getCurrentKeyboardState } from './util.mjs'; @@ -160,6 +160,37 @@ const timeToRands = (t, n) => timeToRandsPrime(timeToIntSeed(t), n); */ export const run = (n) => saw.range(0, n).floor().segment(n); +/** + * Creates a pattern from a binary number. + * + * @name binary + * @param {number} n - input number to convert to binary + * @example + * "hh".s().struct(binary(5)) + * // "hh".s().struct("1 0 1") + */ +export const binary = (n) => { + const nBits = reify(n).log2(0).floor().add(1); + return binaryN(n, nBits); +}; + +/** + * Creates a pattern from a binary number, padded to n bits long. + * + * @name binaryN + * @param {number} n - input number to convert to binary + * @param {number} nBits - pattern length, defaults to 16 + * @example + * "hh".s().struct(binaryN(55532, 16)) + * // "hh".s().struct("1 1 0 1 1 0 0 0 1 1 1 0 1 1 0 0") + */ +export const binaryN = (n, nBits = 16) => { + nBits = reify(nBits); + // Shift and mask, putting msb on the right-side + const bitPos = run(nBits).mul(-1).add(nBits.sub(1)); + return reify(n).segment(nBits).brshift(bitPos).band(pure(1)); +}; + export const randrun = (n) => { return signal((t) => { // Without adding 0.5, the first cycle is always 0,1,2,3,... @@ -499,7 +530,7 @@ export const undegrade = register('undegrade', (pat) => pat._undegradeBy(0.5), t export const sometimesBy = register('sometimesBy', function (patx, func, pat) { return reify(patx) - .fmap((x) => stack(pat._degradeBy(x), func(pat._undegradeBy(1 - x)))) + .fmap((x) => stack(pat._degradeBy(x), func(pat)._undegradeBy(1 - x))) .innerJoin(); }); diff --git a/packages/core/test/pattern.test.mjs b/packages/core/test/pattern.test.mjs index 31ec48681..2d29ea5db 100644 --- a/packages/core/test/pattern.test.mjs +++ b/packages/core/test/pattern.test.mjs @@ -46,12 +46,14 @@ import { rev, time, run, + binaryN, pick, stackLeft, stackRight, stackCentre, s_cat, calculateTactus, + sometimes, } from '../index.mjs'; import { steady } from '../signal.mjs'; @@ -958,6 +960,18 @@ describe('Pattern', () => { expect(run(4).firstCycle()).toStrictEqual(sequence(0, 1, 2, 3).firstCycle()); }); }); + describe('binaryN', () => { + it('Can make a binary pattern from a decimal', () => { + expect(binaryN(55532).firstCycle()).toStrictEqual( + sequence(1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0).firstCycle(), + ); + }); + it('Can make a binary pattern from patterned inputs', () => { + expect(binaryN(pure(0x1337), pure(14)).firstCycle()).toStrictEqual( + sequence(0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1).firstCycle(), + ); + }); + }); describe('ribbon', () => { it('Can ribbon', () => { expect(cat(0, 1, 2, 3, 4, 5, 6, 7).ribbon(2, 4).fast(4).firstCycle()).toStrictEqual( @@ -1253,4 +1267,13 @@ describe('Pattern', () => { expect(s('bev').chop(8).loopAt(2).tactus).toStrictEqual(Fraction(4)); }); }); + describe('sometimes', () => { + it('works with constant functions', () => { + expect( + pure('a') + .sometimes((x) => pure('b')) + .fast(16).firstCycleValues.length, + ).toStrictEqual(16); + }); + }); }); diff --git a/test/__snapshots__/examples.test.mjs.snap b/test/__snapshots__/examples.test.mjs.snap index 761c95fa7..c071b5365 100644 --- a/test/__snapshots__/examples.test.mjs.snap +++ b/test/__snapshots__/examples.test.mjs.snap @@ -954,6 +954,24 @@ exports[`runs examples > example "bank" example index 0 1`] = ` ] `; +exports[`runs examples > example "beat" example index 0 1`] = ` +[ + "[ 0/1 → 1/16 | s:bd ]", + "[ 1/1 → 17/16 | s:bd ]", + "[ 2/1 → 33/16 | s:bd ]", + "[ 3/1 → 49/16 | s:bd ]", +] +`; + +exports[`runs examples > example "beat" example index 1 1`] = ` +[ + "[ 1/48 → 1/12 | s:sd ]", + "[ 49/48 → 13/12 | s:sd ]", + "[ 97/48 → 25/12 | s:sd ]", + "[ 145/48 → 37/12 | s:sd ]", +] +`; + exports[`runs examples > example "begin" example index 0 1`] = ` [ "[ 0/1 → 1/2 | s:rave begin:0 ]", @@ -967,6 +985,60 @@ exports[`runs examples > example "begin" example index 0 1`] = ` ] `; +exports[`runs examples > example "binary" example index 0 1`] = ` +[ + "[ 0/1 → 1/3 | s:hh ]", + "[ 2/3 → 1/1 | s:hh ]", + "[ 1/1 → 4/3 | s:hh ]", + "[ 5/3 → 2/1 | s:hh ]", + "[ 2/1 → 7/3 | s:hh ]", + "[ 8/3 → 3/1 | s:hh ]", + "[ 3/1 → 10/3 | s:hh ]", + "[ 11/3 → 4/1 | s:hh ]", +] +`; + +exports[`runs examples > example "binaryN" example index 0 1`] = ` +[ + "[ 0/1 → 1/16 | s:hh ]", + "[ 1/16 → 1/8 | s:hh ]", + "[ 3/16 → 1/4 | s:hh ]", + "[ 1/4 → 5/16 | s:hh ]", + "[ 1/2 → 9/16 | s:hh ]", + "[ 9/16 → 5/8 | s:hh ]", + "[ 5/8 → 11/16 | s:hh ]", + "[ 3/4 → 13/16 | s:hh ]", + "[ 13/16 → 7/8 | s:hh ]", + "[ 1/1 → 17/16 | s:hh ]", + "[ 17/16 → 9/8 | s:hh ]", + "[ 19/16 → 5/4 | s:hh ]", + "[ 5/4 → 21/16 | s:hh ]", + "[ 3/2 → 25/16 | s:hh ]", + "[ 25/16 → 13/8 | s:hh ]", + "[ 13/8 → 27/16 | s:hh ]", + "[ 7/4 → 29/16 | s:hh ]", + "[ 29/16 → 15/8 | s:hh ]", + "[ 2/1 → 33/16 | s:hh ]", + "[ 33/16 → 17/8 | s:hh ]", + "[ 35/16 → 9/4 | s:hh ]", + "[ 9/4 → 37/16 | s:hh ]", + "[ 5/2 → 41/16 | s:hh ]", + "[ 41/16 → 21/8 | s:hh ]", + "[ 21/8 → 43/16 | s:hh ]", + "[ 11/4 → 45/16 | s:hh ]", + "[ 45/16 → 23/8 | s:hh ]", + "[ 3/1 → 49/16 | s:hh ]", + "[ 49/16 → 25/8 | s:hh ]", + "[ 51/16 → 13/4 | s:hh ]", + "[ 13/4 → 53/16 | s:hh ]", + "[ 7/2 → 57/16 | s:hh ]", + "[ 57/16 → 29/8 | s:hh ]", + "[ 29/8 → 59/16 | s:hh ]", + "[ 15/4 → 61/16 | s:hh ]", + "[ 61/16 → 31/8 | s:hh ]", +] +`; + exports[`runs examples > example "bite" example index 0 1`] = ` [ "[ 0/1 → 1/8 | note:Bb3 ]", diff --git a/test/__snapshots__/tunes.test.mjs.snap b/test/__snapshots__/tunes.test.mjs.snap index f851077a8..840f9f329 100644 --- a/test/__snapshots__/tunes.test.mjs.snap +++ b/test/__snapshots__/tunes.test.mjs.snap @@ -8,6 +8,7 @@ exports[`renders tunes > tune: amensister 1`] = ` "[ 0/1 → 1/4 | n:0 s:amencutup room:0.5 ]", "[ 1/16 → 1/8 | s:breath room:1 shape:0.6 begin:0.875 end:0.9375 ]", "[ 1/8 → 3/16 | s:breath room:1 shape:0.6 begin:0.8125 end:0.875 ]", + "[ 1/8 → 1/4 | n:0 s:amencutup room:0.5 ]", "[ 1/8 → 1/4 | note:45 s:sawtooth gain:0.4 decay:0.1 sustain:0 lpattack:0.1 lpenv:-4 resonance:10 cutoff:300.174310575404 ]", "[ 1/8 → 1/4 | note:45 s:sawtooth gain:0.4 decay:0.1 sustain:0 lpattack:0.1 lpenv:-4 resonance:10 cutoff:300.174310575404 ]", "[ 3/16 → 1/4 | s:breath room:1 shape:0.6 begin:0.75 end:0.8125 ]", @@ -17,22 +18,20 @@ exports[`renders tunes > tune: amensister 1`] = ` "[ 1/4 → 3/8 | note:A1 s:sawtooth gain:0.4 decay:0.1 sustain:0 lpattack:0.1 lpenv:-4 resonance:10 cutoff:300.7878869297153 ]", "[ 5/16 → 3/8 | s:breath room:1 shape:0.6 begin:0.625 end:0.6875 ]", "[ 3/8 → 7/16 | s:breath room:1 shape:0.6 begin:0.5625 end:0.625 ]", - "[ 3/8 → 1/2 | n:1 s:amencutup room:0.5 ]", "[ 3/8 → 1/2 | note:F1 s:sawtooth gain:0.4 decay:0.1 sustain:0 lpattack:0.1 lpenv:-4 resonance:10 cutoff:302.11020572391345 ]", "[ 3/8 → 1/2 | note:F1 s:sawtooth gain:0.4 decay:0.1 sustain:0 lpattack:0.1 lpenv:-4 resonance:10 cutoff:302.11020572391345 ]", "[ 7/16 → 1/2 | s:breath room:1 shape:0.6 begin:0.5 end:0.5625 ]", "[ 1/2 → 9/16 | s:breath room:1 shape:0.6 begin:0.4375 end:0.5 ]", + "[ 1/2 → 5/8 | n:2 s:amencutup room:0.5 ]", "[ 1/2 → 3/4 | n:2 s:amencutup room:0.5 ]", "[ 9/16 → 5/8 | s:breath room:1 shape:0.6 begin:0.375 end:0.4375 ]", "[ 5/8 → 11/16 | s:breath room:1 shape:0.6 begin:0.3125 end:0.375 ]", "[ 11/16 → 3/4 | s:breath room:1 shape:0.6 begin:0.25 end:0.3125 ]", "[ 3/4 → 13/16 | s:breath room:1 shape:0.6 begin:0.1875 end:0.25 ]", - "[ 3/4 → 7/8 | n:3 s:amencutup room:0.5 ]", "[ 3/4 → 7/8 | note:Bb0 s:sawtooth gain:0.4 decay:0.1 sustain:0 lpattack:0.1 lpenv:-4 resonance:10 cutoff:312.54769231985796 ]", "[ 3/4 → 7/8 | note:Bb0 s:sawtooth gain:0.4 decay:0.1 sustain:0 lpattack:0.1 lpenv:-4 resonance:10 cutoff:312.54769231985796 ]", "[ 13/16 → 7/8 | s:breath room:1 shape:0.6 begin:0.125 end:0.1875 ]", "[ 7/8 → 15/16 | s:breath room:1 shape:0.6 begin:0.0625 end:0.125 ]", - "[ 7/8 → 1/1 | n:3 s:amencutup room:0.5 ]", "[ 7/8 → 1/1 | note:D1 s:sawtooth gain:0.4 decay:0.1 sustain:0 lpattack:0.1 lpenv:-4 resonance:10 cutoff:318.7927796831686 ]", "[ 7/8 → 1/1 | note:D1 s:sawtooth gain:0.4 decay:0.1 sustain:0 lpattack:0.1 lpenv:-4 resonance:10 cutoff:318.7927796831686 ]", "[ 15/16 → 1/1 | s:breath room:1 shape:0.6 begin:0 end:0.0625 ]", @@ -6906,10 +6905,10 @@ exports[`renders tunes > tune: flatrave 1`] = ` "[ 1/8 → 1/4 | s:hh n:1 speed:0.5 delay:0.5 end:0.020001936784171157 bank:RolandTR909 room:0.5 gain:0.4 ]", "[ 1/8 → 1/4 | s:hh n:1 speed:0.5 delay:0.5 end:0.020001936784171157 bank:RolandTR909 room:0.5 gain:0.4 ]", "[ 1/8 → 1/4 | note:G1 s:sawtooth decay:0.1 sustain:0 lpattack:0.1 lpenv:-4 cutoff:800 resonance:8 ]", - "[ 1/4 → 3/8 | s:hh n:1 end:0.02000875429921906 bank:RolandTR909 room:0.5 gain:0.4 ]", - "[ 1/4 → 3/8 | s:hh n:1 end:0.02000875429921906 bank:RolandTR909 room:0.5 gain:0.4 ]", "[ 1/4 → 3/8 | note:G1 s:sawtooth decay:0.1 sustain:0 lpattack:0.1 lpenv:-4 cutoff:800 resonance:8 ]", "[ 3/8 → 1/2 | s:hh n:1 end:0.020023446730265706 bank:RolandTR909 room:0.5 gain:0.4 ]", + "[ 1/2 → 5/8 | s:hh n:1 speed:0.5 delay:0.5 end:0.020048626493108724 bank:RolandTR909 room:0.5 gain:0.4 ]", + "[ 1/2 → 5/8 | s:hh n:1 speed:0.5 delay:0.5 end:0.020048626493108724 bank:RolandTR909 room:0.5 gain:0.4 ]", "[ 1/2 → 5/8 | note:G1 s:sawtooth decay:0.1 sustain:0 lpattack:0.1 lpenv:-4 cutoff:800 resonance:8 ]", "[ 1/2 → 1/1 | s:bd bank:RolandTR909 ]", "[ 1/2 → 1/1 | s:cp bank:RolandTR909 ]", @@ -6917,7 +6916,6 @@ exports[`renders tunes > tune: flatrave 1`] = ` "[ 5/8 → 3/4 | s:hh n:1 end:0.020086608138500644 bank:RolandTR909 room:0.5 gain:0.4 ]", "[ 5/8 → 3/4 | s:hh n:1 end:0.020086608138500644 bank:RolandTR909 room:0.5 gain:0.4 ]", "[ 5/8 → 3/4 | note:G1 s:sawtooth decay:0.1 sustain:0 lpattack:0.1 lpenv:-4 cutoff:800 resonance:8 ]", - "[ 3/4 → 7/8 | s:hh n:1 end:0.02013941880355398 bank:RolandTR909 room:0.5 gain:0.4 ]", "[ 7/8 → 1/1 | note:G1 s:sawtooth decay:0.1 sustain:0 lpattack:0.1 lpenv:-4 cutoff:800 resonance:8 ]", ] `; diff --git a/website/src/config.ts b/website/src/config.ts index dd003c185..a404f542a 100644 --- a/website/src/config.ts +++ b/website/src/config.ts @@ -100,6 +100,7 @@ export const SIDEBAR: Sidebar = { { text: 'Coding syntax', link: 'learn/code' }, { text: 'Pitch', link: 'understand/pitch' }, { text: 'Cycles', link: 'understand/cycles' }, + { text: 'Voicings', link: 'understand/voicings' }, { text: 'Pattern Alignment', link: 'technical-manual/alignment' }, { text: 'Strudel vs Tidal', link: 'learn/strudel-vs-tidal' }, ], diff --git a/website/src/pages/learn/factories.mdx b/website/src/pages/learn/factories.mdx index 6a2e165b2..b43d3abfa 100644 --- a/website/src/pages/learn/factories.mdx +++ b/website/src/pages/learn/factories.mdx @@ -55,6 +55,14 @@ These are the equivalents used by the Mini Notation: ## run - + + +## binary + + + +## binaryN + + After Pattern Constructors, let's see what [Time Modifiers](/learn/time-modifiers) are available. diff --git a/website/src/pages/understand/voicings.mdx b/website/src/pages/understand/voicings.mdx new file mode 100644 index 000000000..7d9c13d90 --- /dev/null +++ b/website/src/pages/understand/voicings.mdx @@ -0,0 +1,325 @@ +--- +title: Understanding Chord Voicings +layout: ../../layouts/MainLayout.astro +--- + +import { MiniRepl } from '../../docs/MiniRepl'; +import { PitchSlider } from '../../components/PitchSlider'; +import Box from '@components/Box.astro'; + +# Understanding Chords and Voicings + +Let's dig deeper into how chords and voicings work in strudel. +I'll try to keep theory jargon to a minimum, so hopefully this is approachable for anyone interested. + +## What is a chord + +Playing more than one note at a time is generally called a `chord`. Here's an example: + +").room(.5)`} /> + +Here's the same with midi numbers: + +").room(.5)`} /> + +Here, we have two 3-note chords played in a loop. +You could already stop here and write chords in this style, which is totally fine and gives you control over individual notes. +One downside is that it can be difficult to find good sounding chords and maybe you're yearning for a way to organize chords in some other way. + +## Labeling Chords + +Chords are typically given different labels depending on the relationship of the notes within. +In the number example above, we have `48,51,55` and `53,57,60`. + +To analyze the relationship of those notes, they are typically compared to some `root`, which is often the lowest note. +In our case, the `roots` would be `48` (= `c3`) and `53` (= `f3`). +We can express the same chords relative to those `roots` like this: + +".add("<48 53>")).room(.5)`} /> + +Now within each chord, each number represents the distance from the root. +A distance between pitches is typically called `interval`, but let's stick to distance for now. + +Now we can see that our 2 chords are actually quite similar, as the only difference is the middle note (and the root of course). +They are part of a group of chords called `triads` which are chords with 3 notes. + +### Triads + +These 4 shapes are the most common types of `triads` you will encounter: + +| shape | label | +| ----- | ---------- | +| 0,4,7 | major | +| 0,3,7 | minor | +| 0,3,6 | diminished | +| 0,4,8 | augmented | + +Here they are in succession: + +".add("60")) +.room(.5)._pitchwheel()`} +/> + +Many types of music often only use minor and major chords, so we already have the knowledge to accompany songs. Here's one: + +\`.add(\`< +a c d f +a e a e +>\`)).room(.5)`} +/> + +These are the chords for "The House of the Rising Sun" by The Animals. +So far, it doesn't sound too exciting, but at least it's recognizable. + +## Voicings + +A `voicing` is one of many ways a certain chord shape can be arranged. +The term comes from choral music, where chords can be sung in different ways by assigning different notes to each voice. +For example we could add 12 semitones to one or more notes in the chord: + +".add("48")) +.room(.5)`} +/> + +Notes that are 12 semitone steps apart (= 1 `octave`) are considered to be equal in a harmonic sense, which is why they get the same note letter. +Here's the same example with note letters: + +") +.room(.5)`} +/> + +These types of voicings are also called `inversions`. There are many other ways we could `voice` this minor chord: + +".add("48")) +.room(.5)`} +/> + +Here we are changing the flavour of the chord slightly by + +1. doubling notes 12 steps higher, +2. using very wide distances +3. omitting notes + +## Voice Leading + +When we want to meaningfully connect chords in a sequence, the chosen voicings affect the way each chord transitions to the next. +Let's revisit "The House of the Rising Sun", this time using our newly acquired voicing techniques: + +\`.add(\`< +a c d f +a e a e +>\`)).room(.5)`} + punchcard +/> + +These voicings make the chords sound more connected and less jumpy, compared to the earlier version, which didn't focus on voicing. +The way chords interact is also called `voice leading`, reminiscent of how an +individual choir voice would move through a sequence of chords. + +For example, try singing the top voice in the above example. Then try the same +on the example not focusing on voice leading. Which one's easier? + +Naturally, there are many ways a progression of chords could be voiced and there is no definitive right or wrong. + +## Chord Symbols + +Musicians playing chord-based music often use a `lead sheet`, which is a simplified notation for a piece of music. +These sheets condense the essential elements, such as chords, into symbols that make the music easy to read and follow. +For example, a lead sheet for "The House of the Rising Sun" might include chords written like this: + +``` +Am | C | D | F +Am | E | Am | E +``` + +Here, each symbol consists of the `root` of the chord and optionally an `m` to signal it's a minor chord (just the root note means it's major). +We could mirror that notation in strudel using the `pick` function: + +" + .pick({ + Am: "57,60,64", + C: "55,60,64", + D: "50,57,66", + F: "57,60,65", + E: "56,59,64", + }) + .note().room(.5)`} + punchcard +/> + +## The voicing function + +Coming up with good sounding voicings that connect well can be a difficult and time consuming process. +The `chord` and `voicing` functions can be used to automate that: + +").voicing().room(.5)`} punchcard /> + +Here we're also using chord symbols but the voicings will be automatically generated with smooth `voice leading`, minimizing jumps. +It is inspired by the way a piano or guitar player would pick chords to accompany a song. + +## Voicing Dictionaries + +The voicing function internally uses so called `voicing dictionaries`, which can also be customized: + +") + .dict('house').anchor(66) + .voicing().room(.5)`} + punchcard +/> + +In a `voicing dictionary`, each chord symbol is assigned one or more voicings. +The `voicing` function then picks the voicing that is closest to the `anchor` (defaults to `c5`). + +The handy thing about this approach is that a `voicing dictionary` can be used to play any chord progression with automated voice leading! + +## The default dictionary + +When using the default dictionary, you can use these chord symbols: + +``` +2 5 6 7 9 11 13 69 add9 +o h sus ^ - ^7 -7 7sus +h7 o7 ^9 ^13 ^7#11 ^9#11 +^7#5 -6 -69 -^7 -^9 -9 +-add9 -11 -7b5 h9 -b6 -#5 +7b9 7#9 7#11 7b5 7#5 9#11 +9b5 9#5 7b13 7#9#5 7#9b5 +7#9#11 7b9#11 7b9b5 7b9#5 +7b9#9 7b9b13 7alt 13#11 +13b9 13#9 7b9sus 7susadd3 +9sus 13sus 7b13sus +aug M m M7 m7 M9 M13 +M7#11 M9#11 M7#5 m6 m69 +m^7 -M7 m^9 -M9 m9 madd9 +m11 m7b5 mb6 m#5 mM7 mM9 +``` + +The available chords and the format is very much inspired by [ireal pro chords](https://technimo.helpshift.com/hc/en/3-ireal-pro/faq/88-chord-symbols-used-in-ireal-pro/). +Some symbols are synonymous: + +- "-" is the same as "m", for example C-7 = Cm7 +- "^" is the same as "M", for example C^7 = CM7 +- "+" is the same as "aug" + +You can decide which ones you prefer. There is no international standard for these symbols. +To get a full chord, the symbols have to be prefixed with a root pitch, e.g. D7#11 is the 7#11 chord relative to the pitch D. + +Here are all possible chords with root C: + +\`).voicing().room(.5)`} + punchcard +/> + +Note that the default dictionary contains multiple ways (= `voicings`) to play each chord symbol. +By default, the `voicing` function tries to minimize jumps. +You can alter the picked voicings in various ways, which are now explained in further detail: + +## anchor + +The `anchor` is a note that is used to align the voicings to: + +").chord("C").voicing().room(.5)`} punchcard /> + +By default, the anchor is the highest possible note the voicing can contain. +When deciding which voicing of the dictionary to pick for a certain chord, the voicing with a top note closest to the anchor wins. + +Note that the anchors in the above example match up with the top notes in the pianoroll. +Like `note`, anchor accepts either midi numbers or note names. + +## mode + +With `mode`, you can change the way the voicing relates to the `anchor`: + +").chord("C").anchor("c5").voicing().room(.5)`} + punchcard +/> + +The modes are: + +- `below`: the top note of the voicing is lower than or equal to the anchor (default) +- `above`: the bottom note of the voicing is higher than or equal to the anchor +- `duck`: the top note of the voicing is lower than the anchor +- `root`: the bottom note of the voicing is always the root note closest to the anchor + +The `anchor` can also be set from within the `mode` function: + +:c5").chord("C").voicing().room(.5)`} punchcard /> + +## n + +The `n` control can be used with `voicing` to select individual notes: + +>").voicing() +.clip("4 3 2 1").room(.5)`} + punchcard +/> + +## Example + +Here's an example of a Jazz Blues in F: + +\`) +$: n("7 8 [10 9] 8").set(chords).voicing().dec(.2) +$: chords.struct("- x - x").voicing().room(.5) +$: n("0 - 1 -").set(chords).mode("root:g2").voicing() +`} + punchcard +/> + +The chords are reused for melody, chords and bassline of the tune.