let sampler = new Tone.Sampler({"A1": "samples/casio/A1.mp3"});

sampler.envelope = {

  attack: 0.2,

  decay: 0,

  sustain: 1,

  release: 0.1

}

sampler.toMaster();

​

function keyPressed() {

  sampler.triggerAttack("A1");

}

​

function keyReleased() {

  sampler.triggerRelease();

}

​

function setup() {

​

}

​

​