Contraction' was released in 1974 and is considered a cult classic among fans of psychedelic rock and spiritual jazz. It is known for its experimental approach to music and its incorporation of spiritual and mystical themes. The album features a blend of blues, funk, and avant-garde music, creating a trippy and hypnotic soundscape. The music on 'Contraction' is characterized by its extended jams, improvisational solos, and spiritual lyrics, making it a truly unique listening experience.