Bounce

tilt a leaf. the drop finds a note.

a stalk of leaves in the drizzle: tilt each blade to aim a falling drop from leaf to leaf, one note per hit

Hanenbow, one mode of Toshio Iwai's Electroplankton, gave you a stem of leaves and one thing you could change: the angle of a leaf. That is enough for a whole toy, because a surface never decides where a thing goes, only where it goes next -- it leaves at the angle it arrived at, mirrored in the surface, which is the same rule a mirror and a bank shot and a skipped stone all run on. Here each blade is tuned to one note of a descending phrase, so a chain of bounces is a melody you aimed rather than composed, and a blade turned five degrees rewrites everything below it. Get one drop through all four and the plant answers.

Concepts: trajectory, rhythm.

An interactive you play with one thumb, on Wundr.