Can somebody with a copy of Van Ronk's book enlighten me as to which track he is referring. Personally I think this sounds like a piece of modern folklore like Muddy Waters painting the Chess studios when the Rolling Stones dropped in.

Bearing in mind that MJH's recordings were made 30 years or so apart, I would think that it would be quite natural for his playing to change somewhat over the years despite him feeling that he had always played it that way. Many folks slow down slightly as they get older.

Hoot