I reviewed that book for The Saturday Review — it was riddled with inexcusable factual mistakes, spelling mistakes, etc.
'Talking Jazz' and 'Black Talk' are two different books. Your review was of his thesis based piece - a very tuff read. The book 'TJ' was a compilation of interviews that have since appeared in full on NPR etc.
errors about errors about error seems redundant. Ben has taught me lots as have you, tho.