collision.score: Score No.2 — Rails Eight shapes, each on a single rail, horizontal or vertical, running back and forth at its own tempo (3, 4, 5, 6, 7 passes per loop). Only a horizontal and a vertical can meet, so every crossing is a note. 36 collisions per loop; each one fires an FM blip and a wood click, pitched by who hit whom and panned by where on the grid. Sound is generated from the simulation, nothing sampled. · Simopia