Ralph Rinzler was both a performer with the Greenbriar Boys and a brilliant folk music historian. Later director of the Smithsonian folk arts section.

He truly respected the soul, if you will, of the hill country performers and encouraged them to be authentic. That is just where his convictions were.

He convinced a young David Grisman who later passed the torch to a young Andy Statman.

All (including Doc) could play far away from the tree but they knew when they were doing so and why. Ralph Rinzler deserves a lot of the credit.