I realized what Led Zeppelin was about around the end of our first U.S. tour. We started off not even on the bill in Denver, and by the time we got to New York we were second to Iron Butterfly, and they didn't want to go on!
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.
I'm just lucky because my kids are grown-up - I love them, very proud of them, and we are in close contact as big-time friends, but they don't need me that much now and I can actually enjoy this wonderful world of music.
All over the world, the idea of creating an melange of international musics, it's a very healthy thing.
I like to comprehend more or less everything around me - apart from the creation of my music. It's an obsessive character trait that's getting worse. I don't switch the light on and off 15 times before I leave the room yet, but something's going wrong.
I know that bands that haven't put out a record for 10 years are playing to 20,000 people a night. But that's not the achievement.