"volume": -10,

  "envelope": {

    "attack": 0.1,

    "decay": 0.3,

    "release": 2,

  }

}).toMaster();

​

var synthScale = ["C3", "D3", "E3", "G3", "A3", "B3",

  "C4", "D4", "E4", "G4", "A4", "B4", "C5"

];

​

var synthLoop = new Tone.Loop(loopCallback, "16n");

Tone.Transport.bpm.value = 40;

​

​

function loopCallback(time) {

  // Pick a random note from the scale

  var pos = floor(random(0, synthScale.length));

  var currentNote = synthScale[pos];

  var velocity = 0.4 + Math.random() * 0.5;

​

​

  var probability = 0.8;

  if (random() < probability) { //stay silent sometimes

    // Original melody

    synth.triggerAttackRelease(currentNote, "16n", time, velocity);

​

    // Parallel melody: original tranposed by a fifth

    var fifth = Tone.Frequency(currentNote).transpose(7);

    synth.triggerAttackRelease(fifth, "16n", time, 0.3);

  }

​

}

​

function setup() {

    synthLoop.start();

  Tone.Transport.start();

}

​

function draw() {

​

}

​

​

function mousePressed() {

​

}