Looking forward to your Canned Heat assessment. I saw the original lineup (Frank Cook et al.) several times at the Ash Grove in Los Angeles, a folk/blues club near my home, as well as at the Monterey Pop Festival, and enjoyed the heck out of them.
I wanted to alert you to an out of print LP compiled by Bob Hite and (I believe) Alan Wilson for the Liberty label: an anthology of obscure R&B 78s from Hite’s collection, called “Rhythm and Blues: The End of an Era.”
http://www.rootsvinylguide.com/ebay_items/rhythm-n-blues-vol-1-uk-liberty-1969-rare-compilation-r-b-album
There are so many absolute classics on this LP, I still marvel at the lineup. This LP was crucial to my teenage development as a fan of postwar R&B, and I’ve always been grateful to the pre-Canned Heat, manic-collector side of Bob Hite that made this anthology possible. Dunno if it was going to figure in your coverage, but wanted to alert you just in case…
Jonathan King