Seán Derrick Cooper Marquardt Born 1964 in Chicago. Came 1983-86 with the U.S. army special forces to Germany. Played saxophone with several free jazz bands in Berlin. Autodidact in guitar and electronics. 1997 founding the band Hildeguard with Toby Burton (Test Department) and Guido Moebius. International tours. Specialized in soundtracks for silent movies. Compositions for Be van Vark dance group at Theater am Halleschen Ufer, Berlin. Different solo projects with experimental music and films. Actor and model.