Cluster can be counted among the most important international protagonists of the electronic avant-garde. Some credit them with having invented ambient music, others as pioneers of synthesizer pop, whilst to some they are firmly embedded in the krautrock universe. There is some truth in all of these notions.
Cluster (or Kluster in the beginning) were founded 1970 in Berlin by Conrad Schnitzler, Hans-Joachim Roedelius and Dieter Moebius. A change in direction and musical differences moved Moebius and Roedelius to split from their third member. The duo recorded 10 regular studio albums between 1971 and 2009. Their debut album ("Cluster 71") is one of the "One Hundred Records That Set The World On Fire", according to The Wire. Bureau B re-released six Cluster albums and several solo works of the two musicians.