Harry Partch (1901-1973)

The Dreamer That Remains (1972)
The Outsider: The Story of Harry Partch (2002) dir. Darren Chesworth

Harry Partch (June 24, 1901 – September 3, 1974) was an American composer and instrument creator. He was one of the first twentieth-century composers to work extensively and systematically with microtonal scales, writing much of his music for custom-made instruments that he built himself, tuned in 11-limit (43-tone) just intonation.