Is that the musical about the white radio guy (can't remember his name) who played "black" songs on the radio and there was a big uproar? It's playing in Seattle later this season as well. Correct me if I'm wrong on that.
Memphis had its world premiere in 2004 at Theatreworks in Mountain View, CA. I remember enjoying the show, but don't remember too much else. The link will take you to an old review from when it was playing here. If I was going to be in La Jolla, I would see it again. Memphis Review
That review lost credibility for me when it said "we're on the west side of Memphis." If you're o the west side of Memphis, you're in the Mississippi River or in AR. Beale Street is downtown.