wikipedia.org: "Phill Niblock (born 2 October 1933, in Anderson, Indiana) is a minimalist composer, filmmaker, videographer, and director of Experimental Intermedia, a foundation for avant-garde music based in New York.
His music usually consists of simultaneous drones created from tape (later computer) manipulations of recorded pitches performed by instrumentalists such as Rafael Toral, David First, Lee Ranaldo, and Thurston Moore, on Guitar Too, for Four (G2,44+1x2); and Ulrich Krieger, on Touch Food. He was to curate the Experimental Intermedia Foundation's CD series, XI Records, with composers David Behrman and Lois V Vierk but wound up doing it alone.
Phill Niblock creates thick, loud, atonal drones of music, filled with microtones of instrumental timbres that generate many other overtones by pulsing against each other in the performance space. Simultaneously, he presents films/videos that look at the movement of people working, or computer-driven, black-and-white abstract images floating through time. Since the mid-1960s, he has been making music and intermedia performances that have been shown at numerous venues around the world. His musical works are notated as actual frequencies (cycles per second) and often transform slowly from consonance to dissonance or the reverse. " More
