Songfacts recently interviewed Ian Anderson, I was just going to skim it but was intrigued by him and read the whole article. Here it is if you're interested (he's a rather unique fellow in many ways....)
Jethro Tull frontman Ian Anderson isn't your typical Rock Star. He's never done drugs and has no use for the trappings of fame. So what does he have in common with the boys from Led Zeppelin? More than you might think.