The second solo album (SYN 002) by Rudiger Lorenz released in Cassette format, in 1982 (really hard to find). My favourite track is track 4 where he plays Bach on a modular synth. On the first half, the piece if performed in a normal tempo by Rudiger himself. The second half of the piece is played by a sequencer in an insane tempo. All tracks are really enjoyable inspite the fact of their experimental style. Conrad Schnitzler helped a lot in the productiion of this album.
Here