(The Song Remains The Same) is not a great film, but there's no point in making excuses. It's just a reasonably honest statement of where we were at that particular time. It's very difficult for me to watch it now, but I'd like to see it in a year's time just to see how it stands up.

There's such a wealth of arts and styles within the guitar... flamenco, jazz, rock, blues... you name it, it's there. In the early days my dream was to fuse all those styles. Now composing has become just as important.

There will be a Led Zeppelin as long as there's a Jimmy Page, John Bonham, John Paul Jones and Robert Plant. This isn't a nostalgia band playing the hits forever. If anything ever happened and somebody left - which I really can't see happening - I don't think we'd bother to carry on. The magic for me is as it is now.

No. I usually rest in my satin-lined coffin, actually. I'm not allowed out in daylight hours.

Many people think of me as just a riff guitarist, but I think of myself in broader terms. As a musician I think my greatest achievement has been to create unexpected melodies and harmonies within a rock and roll framework. And as a producer I would like to be remembered as someone who was able to sustain a band of unquestionable individual talent, and push it to the forefront during its working career. I think I really captured the best of our output, growth, change and maturity on tape - the multifaceted gem that is Led Zeppelin.

I had another idea of getting a traveling medicine wagon with a dropdown side and traveling around England. That might sound crazy to you, but over there it's so rural you can do it. Just drop down the side and play through big battery amps and mixers and it can all be as temporary or as permanent as I want it to be.

Music is the one thing that has been consistently there for me. It hasn’t let me down.