tonal cookbook #tonal #music #javascript

tonal-cookbook.js

// https://github.com/tonaljs/tonal/issues/108

// To obtain the scale properties, use the scale function:

import { scale } from "@tonaljs/scale"
scale("G aeolian").notes // => ["G", "A", "Bb", ... ]

// To obtain the chords, use the scaleChords function from the same package:

import { scaleChords } from "@tonaljs/scale"
scaleChords("aeolian")

// Getting a diatonic chord sequence starting from a given note
// https://github.com/tonaljs/tonal/issues/161

Key.majorKey('g4').chords.map(chord => Chord.get(chord).notes.slice(0,3))
/*
[
  [ 'G4', 'B4', 'D5' ],
  [ 'A4', 'C5', 'E5' ],
  [ 'B4', 'D5', 'F#5' ],
  [ 'C5', 'E5', 'G5' ],
  [ 'D57', 'F#57', 'A57' ],
  [ 'E5', 'G5', 'B5' ],
  [ 'F#5', 'A5', 'C6' ]
]
/*