Music Insects by Toshio Iwai (1992). Permanent collection at the Exploratorium, San Francisco, U.S.A.

These "music insects" "react" to color dots on the screen. When they pass over them such dots, they trigger musical scales, sounds, and different light patterns. The user selects colors from a palette with a track ball, and paints in their path, and the insects perform the colors when they pass over them. The insects' direction can be changed with certain colors, and colors can be painted to achieve less random musical "performances." This piece is a sort of tool for visual music performance.