Thanks for all the advice.
I don't know of another source, though I did record this at the Hollywood Bowl, a fairly large venue. I'd be quite surprised to learn I was the only "one."
I also got very good recordings of B.B. King and Shemekia Copeland that same evening. It was the B.B. King Bluesfest. Now I'm teaching myself (trial & error) how to edit.
Boy, there is MUCH to learn.
I've also got a couple George Thorogood shows which I recorded. Both will require significant "tweaking" during the editing phase.
I'm hoping they can be salvaged as I'm certain I was the only "taper" at both shows and I'm a BIG collector of his live shows. I've got a WHOLE BUNCH to learn before I dare tackle these shows.