I'll soon be building a sound installation consisting of several hundred (ping pong?) balls in a series of hopper assemblages. At the bottom of each hopper will be a feed tube with solenoids at the end. The solenoids will be triggered by Arduino, and pop out the ping pong balls at prescribed times.
The ping pong balls will bounce sequentially onto carefully placed musical instruments on the floor below, before finally coming to a rest in a cushioned collection area.
The Arduino will be communicating via midi on the computer, and following instructions from a pre-conceived score written specifically for the installation.
Video below is of balls bouncing onto different combinations of instruments, to give an idea of the "Bounce Announce" setup.
Below this is audio I captured from the above video, in layered form, to give an idea of the possibilities of the installation. The final product will hopefully be much wider in scope, with perhaps a dozen solenoids with corresponding instrument arrays.
Bounce Announce Test 1 by PushTheOtherButton