https://github.com/gregjopa/music.js

music theory library for javascript
https://github.com/gregjopa/music.js

Last synced: 11 days ago
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music theory library for javascript

• Host: GitHub
• URL: https://github.com/gregjopa/music.js
• Owner: gregjopa
• License: mit
• Created: 2011-05-22T22:47:49.000Z (over 13 years ago)
• Default Branch: master
• Last Pushed: 2017-07-19T01:10:53.000Z (over 7 years ago)
• Last Synced: 2024-10-16T11:49:54.352Z (27 days ago)
• Language: JavaScript
• Homepage:
• Size: 75.2 KB
• Stars: 204
• Watchers: 17
• Forks: 19
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE-MIT

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README

        
# music.js

## Use Teoria.js Instead

This library is no longer maintained. I recommend using the music theory library Teoria.js instead:

[https://github.com/saebekassebil/teoria](https://github.com/saebekassebil/teoria).

## Overview

music.js is a music creation library for javascript. It includes functions

and data sets to generate notes, intervals, chords, and scales.

## Example usage

### Note

``` Note.fromLatin(name) ```: Note by latin name and octave

```javascript

var n = Note.fromLatin('A4');  // single note

var freq = n.frequency();  // returns 440

var name = n.latin();  // returns "A"

var octave = n.octave();  // returns 4

var cmaj = Note.fromLatin('C4E4G4');  // chord = array of notes

var freq = cmaj[0].frequency();  // returns 261.625...

var name = cmaj[0].latin();  // returns "C"

var octave = cmaj[0].octave();  // returns 4

var n = Note.fromLatin('C4');  // base note for scale

var majorScale = n.scale('major');  // scale = array of notes

```

### Interval

``` Interval.fromName(name) ```: Interval by name

``` Interval.fromSemitones(num) ```: Interval by semitones

```javascript

var fifth = Interval.fromName('fifth');  // define by name

var wholeStep = Interval.fromSemitones(2); // define by # of semitones

var c = Note.fromLatin('C3');

// use intervals to transpose notes

var d = c.add(wholeStep);

// use intervals to define chords

var cmaj = c.add(['unison','major third','fifth']);

```