I can't really deal with buttons. And that's what I keep saying, "Okay, I can't push buttons, because that means I have to take my hands off the keyboard or the buttons or whatever. Don't you understand!" .

Maybe I'll start from the initial idea, what motivated me to do that. In 1953, I had access to a tape recorder. Tape recorders were not widely available. There was no cassette tape back then. It was a Sears Roebuck tape machine. I put a microphone in the window and recorded the ambience.

I'm very interested in vertical space.I want the players to listen to their sound in such a way that they hear the complete sound they make before they make another one. So that means that they hear the tail of the sound. Because of the reverberation, there's always more to the sound than just the sound.

I had invented my own system, my own way of making electronic music at the San Francisco Tape Music Centre, and I was using what is now referred to as a classical electronic music studio, consisting of tube oscillators and patch bays. There were no mixers or synthesizers. So I managed to figure out how to make the oscillators sing. I used a tape delay system using two tape recorders and stringing the tape between the two tape machines and being able to configure the tracks coming back in different ways.

It's going to take about a year or two for the transfer to be completed. We have a certification program so professionals can teach deep listening.

I try to schedule the Intensives wherever I go.

Deep Listening is listening to everything all the time, and reminding yourself when you're not. But going below the surface too, it's an active process. It's not passive. I mean hearing is passive in that soundwaves hinge upon the eardrum. You can do both. You can focus and be receptive to your surroundings. If you're tuned out, then you're not in contact with your surroundings. You have to process what you hear. Hearing and listening are not the same thing.