Rolf Gehlhaar

(*1943 in Wroclaw (Breslau) Poland) studied pilosophy and music in Yale and Berkely. Member of Karlheinz Stockhausen's ensemble and his personal assistant between 1967 and 1970. Co-founded, with Johannes G. Fritsch and David Johnson (4), the Feedback Studio, Köln and Feedback Studio Verlag Köln. He lives in London since 1975 and concentrates on his own compostions now.