I have a collection of BBC sessions from the R & B period, a few of which I reel to reel taped myself back then from glorious medium wave, but mostly from fm rebroadcasts over the years. Sadly to my knowledge, the Saturday Club session from 18/04/64 has never been rebroadcast - in particular Hi Heeled Sneakers and Beautiful Delilah, and versions circulating tend to have the first few seconds missing.