The emergence of Krautrock was one of postwar culture's most spectacular blossomings. Also called ‘Kosmische Musik’, it is a broad genre of experimental rock that developed in West Germany in the late 1960s and early 1970’s among artists who blended elements of psychedelic rock, avant-garde composition, and electronic music. These artists explored hypnotic rhythms, extended improvisation, musique concrète techniques and early synthesizers, while generally moving away from the rhythm & blues roots and song structure found in traditional Anglo-American rock music. Prominent groups associated with the Krautrock label included Neu!, Can, Faust, Tangerine Dream, Kraftwerk, Cluster, Ash Ra Tempel, Popol Vuh, Amon Düül II and Harmonia.