Ivor Darreg

Ivor Darreg (May 5, 1917 – February 12, 1994) was an American composer and leading proponent of microtonal or “xenharmonic” music. He also created a series of experimental musical instruments. Biography Darreg, a contemporary of Harry Partch and a close colleague of John H. Chalmers, Erv Wilson, and Joel Mandelbaum, was one of America’s leading theorists and practitioners of experimental intonation and experimental instrument building. Frequently he published his writings in his own Xenharmonic Bulletin. Darreg was born Kenneth Vincent Gerard O’Hara in Portland, Oregon. His father John O’Hara was editor of the (Portland) Catholic Sentinel newspaper and his mother was an artist. (His Uncle, Edwin Vincent O’Hara, was a Roman Catholic Bishop. ) He dropped out of school as a teenager, but he had both self-taught facility in at least ten languages and a basic understanding of all the sciences. His real love was music and electronics. Because of his choice of music, his father cast him out, and he and his mother set out on their own with little help from anyone. At that point he took on the name “Ivor,” which means “man with bow” (from his cello-playing talents) and “Drareg” (the retrogr