let octave = 0;

let major = [0, 2, 4, 5, 7, 9, 11, 12];

let minor = [0, 2, 3, 5, 7, 9, 10, 12];

let scale = major;

​

function setup(){

  createCanvas(400, 400);

  console.log("Press keys 1 through 8 to trigger different notes; move the mouse around the canvas to change the octave")

  console.log("When the mouse is pressed, the scale is set to minor");

}

​

function draw(){

  background(0);

  if(mouseIsPressed){

    scale = minor;

  }

  else{

    scale = major;

  }

}

​

function keyPressed(){

  // root = floor(map(mouseX, 0, width, 24, 36));

  octave = floor(map(mouseX, 0, width, 0, 3));

  let pos = (parseInt(key) - 1) % 8;

  let note = root + scale[pos] + octave * 12;

  let noteObject = Tone.Frequency(note, "midi");

  player.triggerAttack(noteObject);

}

​

let player = new Tone.Sampler(

    {

      "A1" : "samples/casio/A1.mp3",

      // "B1" : "samples/casio/B1.mp3",

      "C2" : "samples/casio/C2.mp3",

      // "D2" : "samples/casio/D2.mp3",

      "E2" : "samples/casio/E2.mp3",

      // "F2" : "samples/casio/F2.mp3",

      "G2" : "samples/casio/G2.mp3",

      // "A2" : "samples/casio/A2.mp3"

    }

);

player.toMaster();

​