​

function setup() {

  createCanvas(400, 400);

  background(220);

​

  synth = new p5.Oscillator();

  synth.setType("sine");

  synth.start();

​

  reverb = new p5.Reverb();

​

  setInterval(playNote, 200);

}

​

function draw() {}

​

function playNote() {

  let scale = [60, 62, 64, 67, 69, 72];

  let note = random(scale);

  let freq = midiToFreq(note);

  reverb.process(synth, 7, 2);

  reverb.drywet(1);

  synth.freq(freq);

  synth.amp(0.7);

​

}

​