A kind of synthesis, but with some elements that perhaps you wouldn't have expected in advance. I always like that when that happens, when something comes that is more than the sum of the parts.

So in the sense that we were all dealing with that freer approach, yes, it was certainly one of the first contacts, perhaps the first contact, when Peter came that summer. So it's a very pivotal moment that is documented there.

There's an institution here called the National Sound Archive, and there's a character who works there, Paul Wilson. He takes a very special interest in the history of the music and advised Martin Davidson of the existence of these tapes.

Remarkable only the very best arrangers can get a sound like that from four horns

To speak about notation as the only way that you can guarantee structure of course is already very suspect.

Of course I knew the work of Roland Kirk and Harry Carney and the specific uses they would make of circular breathing, so I knew it was physically possible.

Improvisation is a compositional method.