15 curves, and the sound each one makes

Fifteen curves, each traced by a point moving in two dimensions — and each one turned into sound. Pitch follows y(t), stereo position follows x(t). They run in order from perfectly periodic to completely chaotic. Listen to the melody: while the curve repeats, the melody repeats. When the curve stops repeating, so does the sound. Nothing here is decorative — every number on screen was measured before it was drawn 0:00 Opening 0:06 Hypocycloid, 5 cusps 0:16 Spirograph 0:26 Wankel epitrochoid 0:36 Crank and slider 0:46 Hoeckens linkage 0:56 Jansen's Strandbeest 1:06 Geneva drive, 4 slots 1:16 Harmonic cam 1:26 Magnetic dipole field line 1:36 B-H hysteresis loop 1:46 RLC phase portrait 1:56 Harmonograph 2:06 Foucault pendulum 2:16 Double pendulum tip 2:26 Lorenz attractor 2:36 Outro