I think that their impact is yet to be felt, their full...

I think that their impact is yet to be felt, their full impact. First of all, their music is now listened to as part of the psyche of everybody, day in and day out. It's the most recorded music in the world, the most copied music in the world, the most enviable music in the world. It's inspired thousands and thousands of artists. Culturally they've had a tremendous impact on the entire 20th century.