This was one at which I wish I could have been in attendance. I did manage to see Stevie Ray live once. Unfortunately he was opening for Huey Lewis & The News, pop favorites at the time. He only got to play for an hour.
There we were, two guys in their mid-thirties, stuck amid a bunch of teenagers who came to see Huey and were having none of Stevie. When they began booing him, my friend and I got vocal when he hit a particular song. Our yee-haw cut through the yowls of the infidels and let Stevie know there was someone who appreciated his music there. The next year when Huey came through again, He had Robert Cray as opening act. We almost went just to see the great bluesman, but finally didn’t.
Not The Baseball Pitcher 
I got to see Albert King and Koko Taylor and their bands once, too, not long before King’s death, at the rather unimpressive Blues Alley in DC…but the bands were fine (it was the crowding and the crowd which made for a lesser experience–Taylor and her band actually had to fight the posers and such to be heard above their din). King loved to play with his audience as well as musically…Peter Frampton and David Bowie, in town for their own concert, were there to see the blues legends, too, and King recognized Bowie.
Good stuff here. Sorry your crowd wasn’t so hot, either, for SRV (you remind me of the idiot fans of Miles Davis who were clearly uninterested in the Modern Jazz Quartet opening for the Davis band at Wolf Trap, the first time I saw the MJQ…and the Davis band was as dull as dishwater).
Saw a great statue of Stevie Ray back when we were in Austin.