//Require MIDIPlayer and MIDIFile modules
var MIDIPlayer = require('midiplayer');
var MIDIFile = require('midifile');


navigator.requestMIDIAccess().then(function(midiAccess) {
	// Creating player
	var midiPlayer = new MIDIPlayer({
	  'output': midiAccess.outputs()[0]
	});

	// creating the MidiFile instance from a buffer (view MIDIFile README)
	var midiFile = new MIDIFile(buffer);

	// Loading the midiFile instance in the player
	midiPlayer.load(midiFile);

	// Playing
	midiPlayer.play(function() {
		console.log('Play ended');
	});

	// Volume
	midiPlayer.volume = 80; // in percent

	// Pausing
	midiPlayer.pause();

	// Resuming
	midiPlayer.resume();

	// Stopping
	midiPlayer.stop();

	// Playing again and loop
	midiPlayer.play(function playCallback() {
		midiPlayer.play(playCallback);
	});

}, function() {
	console.log('No midi output');
});