draft.js

import neume, { scapi } from "neume";

const neu = neume();
const { mul, SinOsc } = scapi;

const hello = neu.def("hello", () => {
  const freq = ctl("freq");
  
  SinOsc(freq)::mul(0.2);
});
  
let synth = { kill: () => {} };

setInterval(() => {
  synth.kill();
  
  const freq = (Math.random() * 2 - 1) * 220 + 880;
  
  synth = hello(neu.currentTime. { freq });
}, 1000);