​

function setup() {

  let cnv = createCanvas(400, 400);

  background(180);

  text("Click to start",20,20)

  cnv.mousePressed(startOscillator);

  osc = new p5.Oscillator();

}

​

function startOscillator() {

  osc.start();

}

​

function mousePressed(){

  background(180);

  text("<- PITCH ->",width/3,20)

  text("     ^   ",0,height/2-10)

  text("VOLUME",0,height/2)

  text("     v   ",0,height/2+10)

}

​

function mouseMoved(){

  osc.freq(map(mouseX,0,width,100,1200))

  outputVolume(map(mouseY,0,height,1,0))

}