Audio-reactive flow — bass → amplitude · highs → churn · stereo → helicity

One HelixNoise.create() field, three live audio features steering it. Bass pumps the flow speed, treble speeds the field's own churn (small eddies flicker faster), and the stereo balance tips the handedness — teal ↔ amber as the mix pans. Press Demo beat for a self-contained scene, or feed it your mic / a track.