Shifting minds
Reich grew up on the music of Bach, Stravinsky and the bebop of Charlie Parker and Miles Davis. As a student, he was initially drawn to the music of the modernist Luciano Berio, but his attempts to write serious music were so difficult that Berio asked him: ‘If you want to write tonal music, then why don’t you?’ In his earlier works, Reich focused mainly on making the musical process audible, so that the listener could clearly follow the gradual unfolding of the composition. One of the techniques he used to this end is what is known as ‘phase-shifting’. Reich discovered the procedure by accident during the transposition of a recording of a speech: from the text ‘It’s Gonna Rain’ he wanted to record ‘It’s Gonna’ on one tape and ‘Rain’ op the other. But he accidentally started the two tape recorders at the same time, and because one loop played a little bit faster, the result was a rhythmic shift that created an unusual effect. By letting the two voices run at minutely different speeds, they slowly but surely moved apart.