A trailblazing force in psycho-acoustic music, Alvin Lucier was an avant-garde composer and performer whose work relates to acoustic phenomena and the science of sound. His recordings, performances, and installations examined the physical properties of sound itself. His innovations include the use of brain waves to generate music, the notation of performers' physical gestures, and the role of room acoustics in the compositional process. He was best known for his influential 1969 composition I Am Sitting in a Room, a process piece which repeats a passage of spoken text until on...