I can play it on my guitar, but I don't always know what the chord name is, I just play it. It's :

E7, A7, B7 thing. Then that work down on the 11th bar going into the B7 on bar 12?

kind of E7,D#7,D7 . . something, then B7 on bar 12? What are correct chord names for that kind of "turnaround" going in to bar 12? It is real standard, I just don't know what it is.

Thank you to you blues lovers out there.