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Merge pull request #966 from eefano/transpose-fix

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fix for transpose(): preserve hap value object structure
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Felix Roos 2024-02-29 08:47:53 +01:00 committed by GitHub
commit 51d9e02e07
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packages/tonal/tonal.mjs
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@ -103,6 +103,8 @@ export const transpose = register('transpose', function (intervalOrSemitones, pa
const semitones = typeof interval === 'string' ? Interval.semitones(interval) || 0 : interval;
return hap.withValue(() => hap.value + semitones);
}
if (typeof hap.value === 'object')
return hap.withValue(() => ({ ...hap.value, note: Note.simplify(Note.transpose(hap.value.note, interval)) }));
// TODO: move simplify to player to preserve enharmonics
// tone.js doesn't understand multiple sharps flats e.g. F##3 has to be turned into G3
return hap.withValue(() => Note.simplify(Note.transpose(hap.value, interval)));
@ -133,6 +135,11 @@ export const scaleTranspose = register('scaleTranspose', function (offset /* : n
if (!hap.context.scale) {
throw new Error('can only use scaleTranspose after .scale');
}
if (typeof hap.value === 'object')
return hap.withValue(() => ({
...hap.value,
note: scaleOffset(hap.context.scale, Number(offset), hap.value.note),
}));
if (typeof hap.value !== 'string') {
throw new Error('can only use scaleTranspose with notes');
}