Holger Czukay (born March 24, 1938) is a German musician. He was born in the Free City of Danzig (now Gdansk). Czukay studied under Karlheinz Stockhausen from 1963 to 1966 and co-founded the influential rock group Can in 1968. Czukay played bass guitar and performed most of the recording and engineering for the group. Czukay recorded some notable early ambient albums, and is important for his utilization of shortwave radio sounds and sampling, and has collaborated with a considerable number of musicians.