I mean there were tambourines, and a gong and that kind of thing. And all sorts of weird things, whistles and even a little cupboard with a door that opened and shut so you could get the noise of a door opening if you wanted to have someone coming in and out of a room. And it was really a junkyard more than anything else.

In Yellow Submarine, we used chains that were there and all sorts of bowls and things. And of course, we used bowls of water too. And bottles with straws, blowing them into the water, to get the effect of submarines surfacing, that kind of thing. It was nice to do because it, we were all being very inventive. And it was fun, it was like a party almost.

I don't know why it's been that way. It's just kind of weird.

These are the sorts of fundamental publishing vices of the most serious kind.

It sounds all very sort of technical, but in fact it was very much a kind of bootlace affair. I mean, in the Abbey Road in those days was a fairly primitive place by today's standards.

It was different. There were a lot of whistles, and some of the guys who got penalties didn't know they got them.