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Try any Node.js package right in your browser
This is a playground to test code. It runs a full Node.js environment and already has all of npm’s 1,000,000+ packages pre-installed, including midi-writer-js. Try it out:
const rkmidi = require('runkit-midi');
const MidiWriter = require('midi-writer-js');
const track = new MidiWriter.Track();
track.addEvent([
new MidiWriter.NoteEvent({pitch: ['E4','D4'], duration: '4'}),
new MidiWriter.NoteEvent({pitch: ['C4'], duration: '2'}),
new MidiWriter.NoteEvent({pitch: ['E4','D4'], duration: '4'}),
new MidiWriter.NoteEvent({pitch: ['C4'], duration: '2'}),
new MidiWriter.NoteEvent({pitch: ['C4', 'C4', 'C4', 'C4', 'D4', 'D4', 'D4', 'D4'], duration: '8'}),
new MidiWriter.NoteEvent({pitch: ['E4','D4'], duration: '4'}),
new MidiWriter.NoteEvent({pitch: ['C4'], duration: '2'})
], function(event, index) {
return {sequential: true};
}
);
const write = new MidiWriter.Writer(track);
rkmidi(write.buildFile());
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