notes: [{

      pitch: 60,

      startTime: 0.0,

      endTime: 0.5

    },

    {

      pitch: 60,

      startTime: 0.5,

      endTime: 1.0

    },

    {

      pitch: 67,

      startTime: 1.0,

      endTime: 1.5

    },

    {

      pitch: 67,

      startTime: 1.5,

      endTime: 2.0

    },

    {

      pitch: 69,

      startTime: 2.0,

      endTime: 2.5

    },

    {

      pitch: 69,

      startTime: 2.5,

      endTime: 3.0

    },

    {

      pitch: 67,

      startTime: 3.0,

      endTime: 4.0

    },

    {

      pitch: 65,

      startTime: 4.0,

      endTime: 4.5

    },

    {

      pitch: 65,

      startTime: 4.5,

      endTime: 5.0

    },

    {

      pitch: 64,

      startTime: 5.0,

      endTime: 5.5

    },

    {

      pitch: 64,

      startTime: 5.5,

      endTime: 6.0

    },

    {

      pitch: 62,

      startTime: 6.0,

      endTime: 6.5

    },

    {

      pitch: 62,

      startTime: 6.5,

      endTime: 7.0

    },

    {

      pitch: 60,

      startTime: 7.0,

      endTime: 8.0

    },

  ],

  totalTime: 8

};

​

let synth = new Tone.Synth().toMaster();

​

​

// Adapt note array to a format Tone.Part understands (objects must include a 'time' property)

for(note of TWINKLE_TWINKLE.notes){

  note.time = note.startTime;

  note.duration = note.endTime - note.startTime;

}

​

let part = new Tone.Part(playNote, TWINKLE_TWINKLE.notes)

part.start(0);

function playNote(time, value){

  synth.triggerAttackRelease(Tone.Frequency(value.pitch, "midi"), value.duration);

}

​

Tone.Transport.start();