|#||Release title||Total tracks||Type of release is||Imprint date||Label|
|1||Air Pressure Fluctuations||3||Audio||2001-11-00|
|2||Air Pressure Fluctuations||3||Audio||2001|
|3||Frogs 4||6||Audio||1985||Not On Label (Felix Hess Self-released)|
|4||Frogs 2||6||Audio||1984||Edition Giannozzo Berlin|
|5||Frogs 1||4||Audio||1982||Taal Beeld Geluid|
|6||Frogs 5||4||Audio||1991||Not On Label (Felix Hess Self-released)|
Dutch sound artist born in 1941 in The Hague and now living and working in Groningen (Haren). He was originally a nuclear physicist and started making electronic sound devices in the 1980's.