Source: Emusician. This is a little dated but still worth a read. Interview by Andrew Raffo Dewar.
Gordon Mumma may be the most important innovator of electronic music you’ve never heard of. With any luck, that is changing with the recent publication of his book Cybersonic Arts: Adventures in American New Music (University of Illinois Press). Part memoir of a remarkable life at the center of 20th and 21st century American experimental music, and part a collection of Mumma’s thoughtful, provocative, and influential essays, the book introduces this pioneer to a new generation of sonic explorers.