Hydra code:

let p5 = new P5();
let maxCount = 5000; // max count of the circles
let currentCount = 1;
let x = [];
let y = [];
let r = [];
s0.init({ src: p5.canvas });
src(s0).out();
p5.hide();
  p5.strokeWeight(0.5);
  x[0] = p5.width / 2;
  y[0] = p5.height / 2;
  r[0] = 10;
p5.draw = () => {
  p5.clear();
  let newR = p5.random(1, 7);
  let newX = p5.random(newR, p5.width - newR);
  let newY = p5.random(newR, p5.height - newR);
  let closestDist = Number.MAX_VALUE;
  let closestIndex = 0;
  for (let i = 0; i < currentCount; i++) {
    let newDist = p5.dist(newX, newY, x[i], y[i]);
    if (newDist < closestDist) {
      closestDist = newDist;
      closestIndex = i;
    }
  }
  let angle = p5.atan2(newY - y[closestIndex], newX - x[closestIndex]);
  x[currentCount] = x[closestIndex] + p5.cos(angle) * (r[closestIndex] + newR);
  y[currentCount] = y[closestIndex] + p5.sin(angle) * (r[closestIndex] + newR);
  r[currentCount] = newR;
  currentCount++;
  for (let i = 0; i < currentCount; i++) {
    p5.fill(255, 255, 0);
    p5.ellipse(x[i], y[i], r[i] * 2, r[i] * 2);
  }
  if (currentCount >= maxCount) p5.noLoop();
};
render(o0);

src(s0).mult(osc(10,1,1)).out()

src(s0).modulate(voronoi(()=>(cc[1])*15,.9)).mult(osc(9,1.1,2)).out()

src(s0).modulate(voronoi(()=>(cc[1])*15,1)).mult(osc(9,1.1,2)).scale(1.5,1,1).out()

src(s0).modulate(voronoi(()=>(cc[1])*15,1)).mult(osc(9,10,6)).scale(1.5,1,1).saturate(({time}) => Math.sin(time) * 4).out()

TidalCycles code:

hush

d1 $ someCycles(degradeBy 0.1) $ jux rev $ struct "t(4,8,3)" $ sometimes (# octave 7) $ n (scale "major" (sometimes rev $ "[0 2 3 4 7]")) # s "superpiano" # speed "[1,2]" # room 0.2
d6 $ ccv "0 10 20 50 80 100 127" # ccn "1" # s "midi"


d2 $ s "bassdm:14*4" # gain 2.5 # room 0.09
d5 $ ccv "0 40 80" # ccn "1" # s "midi"


d4 $ s "[reverbkick]" # room 0.5
d5 $ ccv "0 20 40 80" # ccn "1" # s "midi"


d3 $ sometimes (# velocity 0.6) $ iter 4 $ struct "<t(4,8) t(4,8,1)>" $ s "cp"