I got very interested in attention and awareness and how to achieve certain states through understanding this.

The San Francisco Tape Music Centre was a kind of collective non-profit that my friends and I got started so that we could pool our equipment and make tape music.

Deep listening is experiencing heightened awareness or expanded awareness of sound and of silence, of quiet, and of sounding - making sounds.

I noticed you could monitor the recording that you're making, but you could also monitor the playback head. There's a little distance between them and so you get an echo, right? If you change the amplitude of, say, the playback and play with that, you get different qualities and different sounds. So I was very interested in that phenomenon.

First of all I had to teach myself how to use the studio because there wasn't any classes in electronic music. So I'd stay there all night and leave in the morning, observe the sun rise and have a lot of different kinds of sounds in my mind. But it was a quest, it was a search. It was research, it was learning.

[Improvisation ] is been with me all my life. We all do it.

I didn't have any sophisticated equipment at all. The equipment we had in the studio at the time was not intended to make music; it was for testing purposes. So we had to repurpose all the equipment to make music. That made me try a lot of different things.