Digital Music store Fake Science has released three live concert performances by synthesist Robert Rich. The MP3 downloads are sets recorded at concerts in San Francisco.

Rich is one of the pioneers of ambient music. His music has a unique sound that combines home-made acoustic and electronic instruments, microtonal tunings, computer-based signal processing, chaotic systems and feedback networks.

The downloads are $5 each, and previews are available at the Fake Science site.