Bridging the gap between the improvisatory rock jams of their earlier recordings, Monster Movie and Delay 1968, Soundtracks also laid the foundations for their more electronic and experimental sounding work, such as Tago Mago and Ege Bamyasi.
West Side Story is the recording of the 1957 Broadway production of the same-titled musical. All music is composed by Leonard Bernstein and lyrics written by Stephen Sondheim.