The timing pass: the seam coin-flip, the dry crossfade, and the notes we scheduled in the past

Paul: "drill in deeply on timing and scheduling. It seems fine but I'm paranoid... isn't it possible we missed something." It was. docs/TIMING-AUDIT- 2026-07.md is the full measurement report; three defects came out of it.

• 1. THE SEAM COIN-FLIP (live only, ~1/4 of downbeats). makeWalk regenerates the collapsed section every chord bar with a DIFFERENT seed, and mapEvents binned events by their POST-humanize beat

• 2. THE DRY CROSSFADE.

• 3. NOTES SCHEDULED IN THE PAST. 92.6% of notes ride the native lane, drained on a 30ms timer with ZERO lookahead while visible (the hidden-tab path already used 0.6s and was strictly more accurate).

• 4. clickmon tapped before makeup with a fixed threshold and read 0 clicks through a measured full-scale dropout. Moved to the limiter output — a sensor that lies is worse than no sensor.

▶ Play it: Food Court Eternity → Highway Heat Death — a shuttle between the two genres this change names — the blend is the point https://stellate.app/?genre=vaporwave&seed=5845&path=1679.4415,859.9931&xdur=0.134

5436455 https://github.com/aboard-io/stellate/commit/5436455dae26f84213af90973e61fd192a6ea7c5