Stephen Michael "Steve" Reich (Born October 3, 1936) is an Americancomposer of music in the style of minimalism. He is known for his music made with tape recordings, and instrumental music with a steady beat (such as Music for 18 Musicians).
He also wrote pieces that used what is called a phasing technique. With phasing technique, two parts might be playing the same part but at slightly different speeds. It is almost like a canon, or round. He wrote pieces like these for piano, violin, and, again, for tape recordings.