Conductor's Hands
Two hands beat two voices locked to an irrational tempo ratio — their pulses can never realign.
Voice A 96 BPMratio φ ≈ 1.618Voice B 155 BPM
Conduct two tempi at once. The system snaps voice B to an irrational multiple of voice A, so the two pulses drift forever and never share a downbeat — Nancarrow in your own arms.
The camera runs locally for hand-tracking only. Nothing is recorded, uploaded, or networked.