This reminds me of a project I had to do for school in which we had to research the origins of the word jazz. We needed non-internet sources so I went to the library. I found all sorts of books, but the most recent was published in 1965 or 1970. There were several from the same vintage as the Panassie book. These books had faint whispers of the bebop movement, but chose to stick to more established "negro music." The best was from a late 50s book stating that John Coltrane was a talented new player, but the author expressed doubt as to whether he would last and make any mark. Similar assesments were made of Bird, et al in the earlier books. I'm sure we will laugh in 20 years about the critics inaccurate/poor assesments of current geniuses. Some would say that said geniuses don't exist. Will they eat their words? Zach