From his early work with the pioneering Krautrock band Cluster to his later, more ambient solo recordings, Hans-Joachim Roedelius remained one of the most innovative and prolific figures in contemporary electronic music. Evolving from the avant-garde improvisational trio Kluster, the music of Cluster (Roedelius and Dieter Moebius) moved from harsh, alien soundscapes to the more melodic proto-synth pop of landmark albums such as 1974's Zuckerzeit. Along with Michael Rother, both members of Cluster produced hypnotic electronic rock music as the short-lived but influential projec...