The Musicians Union declared you couldn't mime on Top Of The Pops, which is obviously impossible, if you've got a studio-based record that you'd worked on for a year or something. And there were a lot of terrible performances. Because on Top Of The Pops, you were just thrown onstage.

People don't have to put you in a box. You can have the confidence to move across, and combine and learn from each different practice. They inform each other.

I'd just written the book Ocean Of Sound, and this terrible thing happened in my life: my wife committed suicide. I was a single parent because of that; I was completely shattered. I had a book that I'd just finished that had been produced through a really, really terrible period, but I had managed to finish it.

We [with David Cunningham] did do Top Of The Pops. It was an eye-opener. I mean, one of the things that was so interesting - I've talked about this a few times recently, and people can't believe it - they used to do this thing called tape switch with the Musicians Union.

At that time, 73 and 74, I became aware that there were a number of us making instruments. Max Eastley was a good friend and he was making instruments, Paul Burwell and I were making instruments, Evan Parker was making instruments, and we knew Hugh Davies, who was a real pioneer of these amplified instruments.

I was associated with the Artist Placement Group in the early 1970s and David Hall, the video artist, was an Artist Placement Group artist. I was completely broke at that time, and he said to me, "Come and do some teaching" - he was head of department at Maidstone College of Art. And I went and did a couple of teaching days and practically the only person who showed up was David Cunningham [Flying Lizard's main man], with all of this finished work

I was working in, being a single parent with a grieving child of five years old. It was horrendous. I couldn't go out much, because I had my daughter to look after. So people used to come round, and Tony Harrington from The Wire came round.