Ripples is a completely synthesized computer music piece that explores qualities of pulse and timbre. It begins with 16 synthesized musical lines, separated by pitch register, pulsing together at a steady rate. As the piece progresses the speeds of these voices increase and decrease at different but related rates, eventually reaching speeds so fast that the individual pulse lines blend into composite timbres, exploring the boundries between listeners' perceptions of line vs. texture.

Composer

http://www.music.columbia.edu/~geersde/ripples.html 

Tremor Transducer
Gilgamesh
Ripples
Memory Dust
Sonar
Twisted Pair
Sugar Cookie