Christopher Franke (b. 6 April 1953, Berlin) is a German musician and composer. From 1971 to 1988 he was a member of the electronic group Tangerine Dream. Initially a drummer with The Agitation, later renamed Agitation Free, his primary focus eventually shifted to keyboards and synthesizers as the group moved away from its psychedelic rock origins. While he was not the first musician to use an analog sequencer, he was probably the first to turn it into a live performance instrument, thus laying the rhythmic foundation for classic Tangerine Dream pieces and indeed for the whole Berlin school sound.
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