Bassic

Bias the circuit to the edge and drive it over: a near-sine settles into a relaxation growl, then sub-harmonic chaos. The attractor scope above shows the loop fracture.

The amp envelope + how the keys play: velocity response, voice allocation, and glide between notes.

A resonant low-pass with its own pluck envelope — the 303 squelch. Push resonance for the squeal; set Env Amt + Decay for the acid pluck.

The felt sub keeps the low end solid under the chaos; saturation glues and tames peaks; the master low-pass sets the top before the limiter.