gistfile1.txt

const {random, sin, PI, pow} = Math

this.t += 1 / 44100

const freq = noteNumber => pow(2, (noteNumber-69) / 12) * 440

const lowPass = (name, v, amount) => {
    amount = amount ? amount : 1;
    const val = (this[name] * amount + v) / (amount + 1)
    this[name] = val;
    return val;
}

const envelope = lowPass('asdfa', keys.length < 0 ? 1 : 0, 100000000)

return (
    sin(2 * PI * this.t * freq((keys[0] || 0))) * knobs.lol * envelope
)