let song;

​

function preload() {

    soundFormats('m4a');

  song = loadSound('skogen.m4a');

}

​

function setup() {

  createCanvas(700, 400);

  background(0,25,120);

​

  song.loop();

}

​

function draw() {

   background(0,25,120);

  noStroke();

  let volume = map(mouseX, 0, width, 0, 1);

  volume = constrain(volume, 0, 1);

  song.amp(volume);

​

  let speed = map(mouseY, 0.1, height, 0, 2);

  speed = constrain(speed, 0.01, 4);

  song.rate(speed);

​

  frameRate(100);

  var rCol= random(1,255);

  stroke(100);

  fill(0.1);

  line(350, -100, mouseX, mouseY);

  stroke(0);

  fill(1);

  //line(600, 0, mouseX, mouseY);

}

​

function keyPressed() {

  if (key == 'S' || key == 's') {

    save("sun.png");

  }

}

​

​

​