The circuit bent SK1 (of which I have two) is a mini  sampling keyboard built by Casio and modified through the brain surgery (rerouting its circuits) of the notorious Patrick Gill.

Rrrring Tones, Live @ the Sparks Music Festival Univ. of Minnesota Pt 1 & Pt 2

Darren Bergstein- electronics, Bob Siebert-circuit bent SK1

Robert Pepper-synths, Steve Welsely-guitar, Bob Siebert-circuit bent SK1

ArtCrime plays a far out version of my tune "F Blue"

ArtCrime Jam - Bob Siebert, John Korchok, Ian Smith
00:00 / 00:00

John Korchok-wind controller, Steve Orbach- electric drums, Bob Siebert-circuit bent SK1

Bob Lepre-electric percussion, Steve Welsely-guitar, Bob Siebert-circuit bent SK1

American Dada! John Korchok LOVES his violin!