Yes, I checked out Lord Randall.

I think the amount of music/styles he absorbed explains what happened from 62-66 and even beyond. You'd be hard pressed to find another person who soaked up that much. The impressive part being what he turned it into. In other words, he had listened to and learned so much, that the only thing he could do that was interesting to him was create what he created. That goes for blues to folk to rock and roll to country to rock and roll to gospel to rock and roll/country/gospel/blues/folkmusic(today). Who else has been so completely about music?