var synth;

// var q = 5;

​

synth = new Tone.PolySynth({

  "volume": -10,

  "envelope": {

    "attack": 0.5,

    "decay": 0,

    "sustain": 0.3,

    "release": 0.5,

    }

}).toMaster();

​

synth.set({"oscillator": {

          "type": "sine" 

      //     },

      // "filter": {

      // "Q": q, //resonance at the cutoff frequency

      // "frequency": 200,  //not affecting?   vs Tone.filter? 

      // "type": "lowpass",

      // "rolloff": -24

        }

})

​

Tone.Transport.bpm.value = 100;

// Tone.Transport.bpm = bpmValue.value();

​

// major C scale

synthScale = ["C2", "E2", "G2", "A2",

  "C3", "D3", "E3", "G3", "A3", "B3",

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

];

​

// random scale

// synthScale = ["C2", "G2", "D#2",

//   "C3", "G3","D#3",

//   "C4", "G4", "D#4","","",""

// ];

​

// main melody

var synthLoop1 = new Tone.Event(loopCallback1);

synthLoop1.loop = true;

synthLoop1.loopEnd = "4n";//4t

​

function loopCallback1(time){

    // synth.triggerAttackRelease("C2","8n", time, 1);

  pos = floor(random(4,synthScale.length));

  note = synthScale[pos];

  var timey1 = ["16t", "8t", "16t", "4t"][floor(random(4))];//n's

  synth.triggerAttackRelease(note, timey1, time, 0.7);

}

​

// secondary filler note

var synthLoop2 = new Tone.Event(loopCallback2);

// var timey = ["4t","8n"][floor(random(2))];

​

synthLoop2.loop = true;

synthLoop2.loopEnd = "8n";//8t

​

function loopCallback2(time){

    // synth.triggerAttackRelease("C2","8n", time, 1);

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

  note = synthScale[pos];

  synth.triggerAttackRelease(note, "8t", time, 0.4);//8n

}

​

// harmony

var synthLoop3 = new Tone.Event(loopCallback3);

synthLoop3.loop = true;

synthLoop3.loopEnd = "4n";

​

function loopCallback3(time){

    // synth.triggerAttackRelease("C2","8n", time, 1);

  pos = floor(random(0,synthScale.length-3));

  note = synthScale[pos];

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

  // var fourth = Tone.Frequency(note).transpose(5);

  // var second = Tone.Frequency(note).transpose(2);

    var timey2 = ["32n", "32n", "4t"][floor(random(3))];

  // console.log(harmony);

  synth.triggerAttackRelease(note, timey2, time, 0.4);

  // synth.triggerAttackRelease(fourth, timey, time, 0.1);

  synth.triggerAttackRelease(fifth, timey2, time, 0.2);

​

}

​

function setup(){

  createCanvas(400,400);

  bpmValue = createSlider(60,140,120,5);

  Tone.Transport.start();

  synthLoop1.start(8);//4

  synthLoop2.start(4);//6

  synthLoop3.start(0);

}

​

​

function draw(){

  background(150);

  // console.log(bpmValue.value());  

  // synth.envelope.attack = map(mouseX, 0, height, 0,1);

  // synth.set.filter.Q = map(mouseY, 0, width, 0, 10);

}

​

​

​

​