Cartridge Music (1960) by John Cage here
Duet for Violin and Doorjamb (1976) by Laurie Anderson   here
Electronic Revolution (1974) by William Burroughs  here
Prima Vista (1967) by Mauricio Kagel here
Antiphonal Meditation (1984) by Pauline Oliveros  here
The Tigers Mind (1967) by Cornelius Cardew
Radio Music (1964) by John Cage

A range of works by Alvin Lucier – see these here
A range of arragnments including works by Scott Walker, Ennio Morricone, The Velvet Undergound, Brian Eno and more.