(1953-) Influential electronic music performer who was a member of Tangerine Dream during its influential 1970's period. Baumann was born and lived his youth years in West Berlin (at the time when the city was still partitioned in the aftermath of World War II), and performed in cover bands as a teenager. In 1971, he befriended Chris Franke, and Franke invited him to join Tangerine Dream. Baumann was on board for the albums Zeit, Atem, Phaedra, Rubycon, Ricochet, and Stratosfear, which are considered by most Tangerine Dream critics to be among the group's best work.