This project completed as my final project for both Physical Computing and Introduction to Computational Media at ITP.
Briefly, ping pong balls roll down 4 individual tracks, and are launched at the bottom by solenoids. The solenoids are triggered rhythmically by an Arduino.
The ping pong balls bounce sequentially onto carefully placed musical instruments. On the instruments are several piezo-electric transducers that send serial data to Processing, which responds with a visualization scheme projected from above.
Here's a video documentation of the project. Enjoy!