Package Exports
- music-chord
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Readme
music-chord 
music-chord is a function to create music chords. They can be created from a chord name (it includes a chord dictionary) or from a list of intervals:
var chord = require('music-chord')
// get chord notes using name
chord('Cmaj7') // => ['C', 'E', 'G', 'B']
// get chord notes using type and tonic
chord('maj7', 'C2') // => ['C2', 'E2', 'G2', 'B2']
// get chord intervals (tonic false)
chord('maj7', false) // => ['1P', '3M', '5P', '7M']
// partially applied
var maj7 = chord('maj7')
maj7('C') // => ['C', 'E', 'G', 'B']
// create chord from intervals
chord('1 3 5 m7 m9', 'C') // => ['C', 'E', 'G', 'Bb', 'Db']This is part of tonal:
var tonal = require('tonal')
tonal.chord('C7') // => ['C', 'E', 'G', 'Bb']Install via npm: npm i --save music-chord
Usage
Chords are arrays of notes ordered by pitch. Not always the first not is the tonic of the chord.
Create chords from a collection of notes or intervals
You can create chords by a list of intervals and a tonic. If the tonic is a pitch class (a note with octave) the chord notes are pitch classes:
chord('1 b3 5 b7 9', 'C2') // => ['C2', 'Eb2', 'G2', 'Bb2', 'D3']
chord('1 b3 5 b7 9', 'C') // => ['C', 'Eb', 'G', 'Bb', 'D']Like most tonal functions, it can be partially applied:
var m7 = chord('1 b3 5 b7')
m7('C') // => ['C', 'Eb', 'G', 'Bb']You can also create a chord from a list of notes (the first is considered to be the tonic):
var dom = chord('A C# E G')
dom('D') // => ['D', 'F#', 'G', 'C']Get chord intervals
If false is passed as tonic, you can get chord intervals:
chord('maj7', false) // => ['1P', '3m', '5P', '7M']Get chord names
The names function return the available chord names:
chord.names() // => ['Maj7', 'm7', ...]
chord.names(true) // => ['Maj7', 'm7', ...] <= with aliasesLicense
MIT License