let ampEnv1 = new Tone.AmplitudeEnvelope({

  "attack": 0.01,

  "decay": 0.6,

  "sustain": 0.1,

  "release": 0.9

}).toMaster();

osc1.volume = -30;

osc1.connect(ampEnv1);

osc1.start();

​

let osc2 = new Tone.Oscillator(880, "sine");

let ampEnv2 = new Tone.AmplitudeEnvelope({

  "attack": 0.1,

  "decay": 0.25,

  "sustain": 0.1,

  "release": 0.9

}).toMaster();

osc2.volume = -30;

osc2.connect(ampEnv2);

osc2.start();

​

function setup() {

​

}

​

function keyPressed() {

  ampEnv1.triggerAttack();

  ampEnv2.triggerAttack();

}

​

function keyReleased() {

  ampEnv1.triggerRelease();

  ampEnv2.triggerRelease();

}

​