My jazz history book, 1900-1950 was finished 4 or 5 years ago, but never was completely issued, as it awaited a large boxed CD set - I am told by the publisher that the release of the boxed set is scheduled for this December - 36 CDs in all, which represent, in my unbiased opinion (yeah, right) the best collection of its kind - sound is uneven, as many sources were 80-100 years old -