Robot

Christoph Heemann - Über den Umgang mit Umgebung und Andere Versuche (1992)
Acumen - Transmissions from Eville... (1994)
Merzbow - Music for the Dead Man 2: Return of the Dead Man (1994)
3,75 (2)
Jonathan Coleclough - Cake (1998)
Organum - Volume One (1998)
Christoph Heemann & Andreas Martin - Lebenserinnerungen Eines Lepidopterologen (1999)
4,50 (1)
Andrew Chalk - Crescent (2000)
Christoph Heemann & Andrew Chalk - Mirror of the Sea (2000)
Mirror - Nightwalkers (2000)
Organum - Volume Two (2000)
4,00 (1)
Organum - Sphyx (2002)
3,33 (3)
Ghost of the Robot - Mad Brilliant (2003)
Ghost of the Robot - It's Nothing EP (2004)
4,00 (1)
Organum - Sanctus (2006)
The Red Paintings - Destroy the Robots (2006)
Acumen Nation - Psycho the Rapist (2007)
4,00 (1)
The Red Paintings - Feed the Wolf (2007)