Improvisation, Two Variations on a Watermelon, and a New Timeline for Piano Phase
Steve Reich’s Piano Phase (1967) represents a pivotal moment in the composer’s creative practice. With this keyboard duet, the composer felt that he had successfully translated his phase-shifting process to live performance and had left behind earlier improvisatory practices. Documents held in the Steve Reich Collection at the Paul Sacher Stiftung complicate this picture: in the months before its composition and premiere, Reich first revived Music for Two or More Pianos or Piano and Tape (1964) as a potential model for live performance, and in Improvisations on a Watermelons (1966) he explored concepts now firmly associated with Piano Phase. An archival audio recording of the Piano Phase premiere also documents a brief improvisation performed by Reich and Arthur Murphy. This chapter argues for a more critical reading of the composer’s autobiographical statements—such as, “we were not improvising”—and offers a newly detailed timeline for the origins of Piano Phase.