mirror of
https://codeberg.org/uzu/strudel
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Alex McLean
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* 0.5 default cps * 1 -> 0.5 cps defaults * start moving examples to 2Hz * more 2Hz doc edits * small tweaks * format * adapt cycles page * adapt pitch page * tonal page * accumulation * synth page * adapt conditional-modifiers * audio effects page * adapt signals doc * fix: errors for signals * adapt signals page * start time modifiers * adapt time modifiers * adapt factories * hydra + pattern intro * adapt mini notation page * start recipes * adapt recipes page * use code_v1 table * delete old dbdump + add new csv based tool * fix: tests * fix: cpm * shuffle featured patterns * fix: snapshot --------- Co-authored-by: Felix Roos <flix91@gmail.com>
87 lines
2.0 KiB
Plaintext
87 lines
2.0 KiB
Plaintext
---
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title: Tonal Functions
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layout: ../../layouts/MainLayout.astro
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---
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import { MiniRepl } from '../../docs/MiniRepl';
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import { JsDoc } from '../../docs/JsDoc';
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# Tonal Functions
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These functions use [tonaljs](https://github.com/tonaljs/tonal) to provide helpers for musical operations.
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### voicing()
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<JsDoc client:idle name="voicing" h={0} />
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Here's an example of how you can play chords and a bassline:
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<MiniRepl
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client:idle
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tune={`chord("<C^7 A7b13 Dm7 G7>*2")
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.dict('ireal').layer(
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x=>x.struct("[~ x]*2").voicing()
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,
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x=>n("0*4").set(x).mode("root:g2").voicing()
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.s('sawtooth').cutoff("800:4:2")
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)`}
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/>
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### scale(name)
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<JsDoc client:idle name="scale" h={0} />
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### transpose(semitones)
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Transposes all notes to the given number of semitones:
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<MiniRepl client:only="react" tune={`"[c2 c3]*4".transpose("<0 -2 5 3>").note()`} />
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This method gets really exciting when we use it with a pattern as above.
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Instead of numbers, scientific interval notation can be used as well:
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<MiniRepl client:only="react" tune={`"[c2 c3]*4".transpose("<1P -2M 4P 3m>").note()`} />
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### scaleTranspose(steps)
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Transposes notes inside the scale by the number of steps:
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<MiniRepl
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client:idle
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tune={`"[-8 [2,4,6]]*2"
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.scale('C4 bebop major')
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.scaleTranspose("<0 -1 -2 -3 -4 -5 -6 -4>*2")
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.note()`}
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/>
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### voicings(range?)
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Turns chord symbols into voicings, using the smoothest voice leading possible:
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<MiniRepl
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client:only="react"
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tune={`stack(
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"<C^7 A7 Dm7 G7>".voicings('lefthand'),
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"<C3 A2 D3 G2>"
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).note()`}
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/>
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Note: This function might be removed, as `voicing` (without s) is a newer implementation.
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### rootNotes(octave = 2)
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Turns chord symbols into root notes of chords in given octave.
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<MiniRepl client:only="react" tune={`"<C^7 A7b13 Dm7 G7>*2".rootNotes(3).note()`} />
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Together with layer, struct and voicings, this can be used to create a basic backing track:
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<MiniRepl
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client:idle
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tune={`"<C^7 A7b13 Dm7 G7>*2".layer(
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x => x.voicings('lefthand').struct("[~ x]*2").note(),
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x => x.rootNotes(2).note().s('sawtooth').cutoff(800)
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)`}
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/>
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