There is a book called San Francisco Tape Music Centre:1960s Counterculture and the Avant-Garde and this book describes everything that you want to know or don't want to know about it, with a lot of documentation.

I felt a challenge to compose music. That's where my challenge was, for the most part.

Something that I did, and I developed out of that sonic meditations, which were pieces that I composed in the '70s that now are very well-known and used in many classrooms all over the world, but at the time were outrageous.

I'm currently very impressed with the level of understanding and of interest in listening that I experience wherever I go. That motivates me to dig deeper into what I've been doing all of this time, to find new ways and also to get over the thought that it's not happening.

That change happened about 1991. It was not possible to transfer the Expanded Instrument System to the computer until then, when 16-bit recording became available.

The sound and just the fact that it was different from the piano, yet it still had some familiarity [made my fascinated with accordion].

There are these sounds that come from outside that work really well if you're listening. If you're not listening, if you're blocking them out, then you don't get it. You don't get the merger of what the players are doing with everything, listening to everything.