I'm not interested in turning anybody on to anybody that I'm turned on to... if people want to find things, they find them themselves.

I don't like to tell people what format they can get things in, or say, "I'm only going to release this on vinyl and nothing else. You have to come to my world." I don't like to say that to people either. But, I do think there's a loss of romance.

I think it's time to travel, start gathering some real right-in-there experiences with street musicians around the world.

Led Zeppelin didn't get that kind of Beatles screaming. We had a more sort of macho crowd. But I remember once in the early days of The Yardbirds, we were playing on an ice rink, and the stage was mobbed by screaming girls. I had my clothes torn off me. That's a really uncomfortable experience, let me tell you.

We kept moving forward and didn't try to recreate the past .. the approach to each album was radically different every time. Many bands would have some success and, because they were locked into having a single - something we didn't have to worry about - they had to make sure there was something similar on the next album ... that was never the idea with Led Zeppelin .. the goal was to keep that spark of spontaneity at all times.

I always felt if we were going in to do an album, there should already be a lot of structure already made up so we could get on with that and see what else happened.

From the classical guitar right through to the furthest electrical experiments and everything in-between, it's amazing what the guitar can actually do. I mean, when one thinks about sounds.