Active since the mid-'60s, synthesizer experimentalist and musique concrète producer Asmus Tietchens has been a major influence on several generations of avant-garde electronic musicians and sound artists. Heavily inspired by Karlheinz Stockhausen, he has pursued "absolute music" through rigid formal exercises. His music is often harsh, alien, and abstract, but he's also recorded several albums of strangely playful material, including a handful of early-'80s Sky Records releases as well as later works as Hematic Sunsets. In addition to releasing over 100 recordings (including ...