| About the discovery and development of phasing techniques. (4:22) |  |
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It was an accident with a pair of tape loops that led Reich to the discovery of phasing—a process
during which one part incrementally increases in tempo, gradually separating the two lines and
then bringing them back together again. It was a technique that became synonymous with the composer’s
name both through tape pieces like It’s Gonna Rain and then in later works that incorporated live
performers, like Piano Phase. Although he abandoned the use of actual tape loops, variations on this
technique continue to inform his musical language to this day.
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