Thursday 17 April, 8pm
(BBC broadcast 26 April)

Janek Schaefer is an English architect turned sound sculptor who has mastered the art of sound collage and specifically an avant-garde "turntablist" who has investigated the use of vinyl records as compositional tools.

He has created installations and soundtracks for exhibitions worldwide. His most famous work is the invention of the tri-arm turntable that exploits the aural capabilities of a vinyl record. Whether the results are by accident, improvisation or thoughtfulness, Janek's recordings are open to infinite variations.