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transpose: support alls combinations of numbers and strings for notes and intervals

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This commit is contained in:
Felix Roos 2024-04-07 01:25:47 +02:00
parent 558e9e36ff
commit 3d06528393
2 changed files with 61 additions and 10 deletions
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34
packages/tonal/test/tonal.test.mjs
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@ -7,7 +7,7 @@ This program is free software: you can redistribute it and/or modify it under th
// import { strict as assert } from 'assert';
import '../tonal.mjs'; // need to import this to add prototypes
import { pure, n, seq } from '@strudel/core';
import { pure, n, seq, note } from '@strudel/core';
import { describe, it, expect } from 'vitest';
import { mini } from '../../mini/mini.mjs';
@ -44,4 +44,36 @@ describe('tonal', () => {
.firstCycleValues.map((h) => h.note),
).toEqual(['C3', 'D3', 'E3']);
});
it('transposes note numbers with interval numbers', () => {
expect(
note(40, 40, 40)
.transpose(0, 1, 2)
.firstCycleValues.map((h) => h.note),
).toEqual([40, 41, 42]);
expect(seq(40, 40, 40).transpose(0, 1, 2).firstCycleValues).toEqual([40, 41, 42]);
});
it('transposes note numbers with interval strings', () => {
expect(
note(40, 40, 40)
.transpose('1P', '2M', '3m')
.firstCycleValues.map((h) => h.note),
).toEqual([40, 42, 43]);
expect(seq(40, 40, 40).transpose('1P', '2M', '3m').firstCycleValues).toEqual([40, 42, 43]);
});
it('transposes note strings with interval numbers', () => {
expect(
note('c', 'c', 'c')
.transpose(0, 1, 2)
.firstCycleValues.map((h) => h.note),
).toEqual(['C', 'Db', 'D']);
expect(seq('c', 'c', 'c').transpose(0, 1, 2).firstCycleValues).toEqual(['C', 'Db', 'D']);
});
it('transposes note strings with interval strings', () => {
expect(
note('c', 'c', 'c')
.transpose('1P', '2M', '3m')
.firstCycleValues.map((h) => h.note),
).toEqual(['C', 'D', 'Eb']);
expect(seq('c', 'c', 'c').transpose('1P', '2M', '3m').firstCycleValues).toEqual(['C', 'D', 'Eb']);
});
});