var synth;

var notes;

​

synth = new Tone.PolySynth({

  "volume": -5,

  "envelope": {

    "attack": 0.1,

    "decay": 0.3,

    "release": 2,

  }

}).toMaster();

​

synth.set({

    "oscillator" : {

        "type" : "triangle"

    },

  // "filter" : { .  //doesn't change anything

  //   "Q": 20,

  //   "type": "lowpass",

  //   "rolloff": -12

  // },

})

​

// // for one Tone.Part event for both lines, 

// // but cannot have different durations for different lines                            

// var chord1 = ["Bb3","A2"];

// var chord2 = ["A3","A2"];

// var chord3 = ["A3","A2"];

// var chord4 = ["G#3","A2"];

// var chord5 = ["G#3","A2"];

// var chord6 = ["F3","A2"];

// var chord7 = ["F3","A2"];

// var chord8 = ["E3","A2"];

​

    Tone.Transport.bpm.value = 40;

    var synthPart = new Tone.Part(function(time, notes) {

      synth.triggerAttackRelease(notes, "8n", time);

    }, [

      ["0:0:0", "Bb3"],

      ["0:0:1", "A3"],

      ["0:0:3", "A3"],

      ["0:1:0", "G#3"],

      ["0:1:2", "G#3"],

      ["0:1:3", "F3"],

      ["0:2:1", "F3"],

      ["0:2:2", "E3"],

      // ["0:0:0", chord1],

      // ["0:0:1", chord2],

      // ["0:0:3", chord3],

      // ["0:1:0", chord4],

      // ["0:1:2", chord5],

      // ["0:1:3", chord6],

      // ["0:2:1", chord7],

      // ["0:2:2", chord8],

    ]).start();

    synthPart.loop = true; 

        synthPart.loopEnd = "0:3:0";

​

​

    var dronePart = new Tone.Part(function(time, notes) {

      synth.triggerAttackRelease(notes, "8n", time);

    }, [

      ["0:0:0", "A2"],

    ]).start();

    dronePart.loop = true; 

        dronePart.loopEnd = "16n";

​

        //transpose by half step from 1 half step to an octave

        //(n=1; n <= 12; n ++) n controlled by mouseX.

    // var transposedNotes = Tone.Frequency(notes).transpose(n);

    // synth.triggerAttackRelease(transposedNotes, "16n", "16n", 0.3);

​

    function setup() {

      synthPart.start();

      dronePart.start();

      Tone.Transport.start();

    }

​

    function draw() {

      background(220);

    }