Krautrock (also called , German for ) is a broad genre of experimental rock that developed in West Germany in the late 1960s and early 1970s among artists who blended elements of psychedelic rock, electronic music, and avant-garde composition. These artists moved away from the blues influences and song structure found in traditional Anglo-American rock music, instead utilizing hypnotic rhythms, tape-music techniques, and early synthesizers. Prominent groups associated with krautrock music included Can, Neu!, Amon Düül II, Faust, Popol Vuh, Cluster, Ash Ra Tempel, Agitation Free, Guru Guru, Tangerine Dream, Kraftwerk, and Harmonia.