Krautrock is a catch-all term for the music of various white German rock groups of the 1970s that blended influences of African American and Anglo-American music with the experimental and electronic music of European composers. Groups such as Can, Popol Vuh, Faust, and Tangerine Dream arose out of the German student movement of 1968 and connected leftist political activism with experimental rock music and, later, electronic sounds. Since the 1970s, American and British popular genres such as indie, post-rock, techno, and hip-hop have drawn heavily on krautrock, ironically reversing a...