It's amazing, it's pumping, it's furious, it's anxious, it's happy and it's far more real than anything you'll ever experience in a Western city. Morocco is a living, pulsating entity which is rapidly changing all the time but there are parts of Marrakesh that carry on as they have done for a thousands years. The music is a reflection of that, of all times and all religions and of all the natural expectations and conditions of the people who live there.

You would find in a lot of Zep stuff that the riff was the juggernaut that careered through and I worked the lyrics around this.

The idea of actually taking sharp turns left and right has always intrigued me, but I've never really been bold enough to do that. As musicians go, I've allowed myself to be carried by other people's enthusiasm into places where I've learned a lot. There is no real tumult anymore. What I want to do, I do! I'm pretty fortunate.

When I was a kid, the world was such a big place, and I had no idea that I would be afforded these great moments in between doing what I love to do.

What I lack in style and craft, I can make up for in joy and enthusiasm. I like to be around people who are at ease so I like to think the 25-year-old would find me quite an easy-going late-middle-aged hippie.

I couldn't imagine anything more horrifying than three middle aged men trying to pretend that 'Black Dog' is still significant. It's inappropriate.

I'm so aware of the fact that if I hadn't taken the chances that I've taken along the line, I probably wouldn't be getting the best out of my voice anymore, I might have messed it up in that awful, predictable place.