​

// smoothing

const smoother = {

  y: 0.0,

  smooth: function(x, c = 0.99) { 

    return  (this.y = (1.0-c)*x + c*this.y);

  }

}

​

// sequencer setup

function startSequencer(sequencer) {

  // eventLists for sequencer

  let seq = [[lp.lowPitch, lp.midLevel, lp.soon, lp.longDuration], O];

  sequencer.add(lp.cello, seq);

  lp.cello.reverb(2.5);

  // set the BPM

  lp.setBpm(200);

  // run sequencer

  sequencer.play();

  // pan/filter modulation

  let s1 = smoother;

  let s2 = smoother;

  const modulator = (t) => {

    lp.cello.pan(s1.smooth(random()));

    lp.cello.cutoff(0.4+0.6*s2.smooth(random()));

    sequencer.addCallback(modulator);

  }

  // prime it

  sequencer.addCallback(modulator);

}

​

​

​

async function setup() {

  lp = await lpLoad();

  startSequencer(lp.sequencer);

}

​

​