He is professor of composition and instrumentation at the Academy of Music “Hanns Eisler” Berlin.
Ganzer attended from 1965 to 1969, the Hanns-Eisler special school for music Berlin. From 1969 to 1975 he studied composition with Wolfram Heicking and accordion with Christine Boll and Hans Boll at the Academy of Music “Hanns Eisler” Berlin. He worked as a freelance composer, teacher, accompanist and arranger, et al at the Volksbühne Berlin, the Berliner Ensemble and Friedrichstadtpalast. He focused on songs, chansons and folklore. He has performed since 1979 in the accordion duo and world music occupations. Ganzer composed electronic music, chamber music, film (Die Wokrenterstraße, 1986), theatre and radio play music. He devoted himself in particular to the guitar and the accordion. From 1983 to the turn he was a member of the competition commission of the central commission accordion of the GDR. In 1996, he was jury chairman of the International Accordion Competition Coupe Mondiale of the Confédération Internationale des Accordéonistes (CIA, IMC-UNESCO). Since 1978 he teaches at the Berlin Conservatory. In 1988 he1 became a lecturer in composition and composition and in 1993 professor of composition and instrumentation. (Wikipedia)