Michael Harrison is an American composer and pianist, influenced by both Western classical and North Indian classical music (Hindustani classical music).

Harrison studied composition and piano at the University of Oregon and the Juilliard School in the late 1970s and 1980s, and began investigating alternative tunings while studying with La Monte Young, and Indian classical music with Pandit Pran Nath in this same period (Wise 2005). In 1986, he designed and created the “harmonic piano,” an extensively modified seven-foot grand piano with the ability to alternate between two different tunings to play 24 notes per octave on a conventional keyboard. For the past 30 years, Harrison has performed his own music throughout the United States and Europe.