We mixed the sounds ourselves. If they were going to put the sound back onto our film [Pink Floyd: Live at Pompeii.], we wanted to mix it ourselves.

Don't bait your breath. That's bad for your health.

I actually learned the guitar with the help of a Pete Seeger instructional record when I was 13 or 14.

I don't, consciously anyways, sort of listen to things with the idea of getting something from them that I can use.

For me, gradually over the years, you refined your tastes in the way you do things and it becomes maybe less experimental.

I'm afraid I haven't become a born-again Christian. I'm sort of 'Church of England, lapsed' is about as far as I go.

It's really tough to get happy music going, you know?