createCanvas(windowWidth, windowHeight);

  background(220);

  StartAudioContext(Tone.context, 'canvas');

}

​

function mousePressed() {

  if (myLoop.state === "started") {

    myLoop.stop();

  } else {

   myLoop.start(); 

  }

}

​

var synth = new Tone.PolySynth(6, Tone.Synth).toMaster();

var patterns = [

  ["C3", "Eb3", "F3", "G3", "Ab3"],

  ["G3", "B4", "D4", "F4", "G4"],

  ["D3", "F3", "Ab4", "Cb4", "D4"]

];

var pattern = new Tone.CtrlPattern(patterns[0], "randomWalk");

var pattern2 = new Tone.CtrlPattern(patterns[0], "randomWalk");

​

var myLoop = new Tone.Loop(function(time) {

​

  var rotX = rotationX || 180;

  var rate = map(rotX, 0, 180, 0.5, 4);

  this.playbackRate = rate;

  var patternIndex = floor(random(3));

  pattern.set("voices", patterns[patternIndex]);

  pattern2.set("voices", patterns[patternIndex]);

​

  var vel = Math.random();

  // var index = Math.floor(Math.random()*pitches.length);

  // var rotation = rotationX || 180;

  // var vel = map(rotation, 0, 180, 0, 1);

  var vel = map(vel, 0, 180, 0.6, 1);

  synth.triggerAttackRelease([pattern.next(), pattern2.next()], "4n", time, vel);

}, "4n");

​

Tone.Transport.start();