In 1967 I entered Harvard as a freshman, confident - in the way that only 17-year-olds are - that I could change the world. My major was African Studies, and my plan was to travel to Tanzania, where President Julius Nyerere was creating a government based on democracy and socialism.

One of the things that I'm glad about, though, is that regular people can relate to me.

I don't want to sound like a self-help book, but it really has been transformative for me to take a look at my relationships in a new way and see my part in them. Everybody's going through that.

Pat Benatar might need a rock band, but I can just sit with a blues guitar for an hour and a half and do folk songs and great contemporary ballads, and not many people can pull that off.

I'm the same on stage as I am off stage. A lot of people who I admire - Bruce Springsteen, Jackson Browne - are not that different either. You hope that if you met them that they'd be as nice and well-rounded as they appear.

You don't have to look a certain way to have a hit record.

I'm sure I would have been considered a more significant artist if I was a singer-songwriter. It's just not the way I roll. I love being a curator and a musicologist. People write me letters and thank me for turning them on to Fred McDowell and Sippie Wallace, and that's partly my job this time around.