chord-voicings

This package contains logic to find chords voicings for a given chord symbol.

Install

``sh
npm i chord-voicings --save
`

Usage

`js
import { dictionaryVoicing, minTopNoteDiff, lefthand } from 'chord-voicings';

const getVoicing = (chord, lastVoicing) =>
dictionaryVoicing({
chord,
dictionary: lefthand,
range: ['F3', 'A4'],
picker: minTopNoteDiff,
lastVoicing,
});

getVoicing('Dm7'); // ['F3', 'A3', 'C3', 'E3']
getVoicing('Dm7', ['F3', 'A3', 'C3', 'E3']); // ['C4', 'E4', 'F4', 'A4']
`

- chord: the chord (= note + chord symbol) we want to voice. The available symbols depend on your dictionary.
- dictionary: Maps chord symbols to possible interval structures. You can either use one of the available voicing dictionaries, or create your own.
- range: The range inside which we are allowed to voice.
- lastVoicing (optional): voicing that came before. If given, the best voice leading will be chosen using picker.
- picker: Function that picks the best voicing after lastVoicing. Currently, there is only minTopNoteDiff, which picks the voicing with the smallest top note distance (or first if no lastVoicing` given).

I made this lib after writing this post.
I also started to integrate this idea directly into tonaljs, see this issue.
Currently, I just want some lib I can use directly without waiting for the tonal integration to fruit.