Sadly, Dallas doesn't have many blues clubs these days, and most of the ones it does have traffic in the same kind of "blues" that made Steve Buscemi get queasy in Ghost World. Not R.L. Griffin's Blues Palace #2, owned and operated by The Right Reverend of Dallas Blues, R.L. Griffin. (Just in case you thought it was nothing more than a clever name.) If you've got the stones to stop thinking about what's happening to your late-model sedan out in the parking lot for an hour or three, it's well worth a trip, especially on Friday and Saturday, when you'll get a chance to witness Griffin's Show and Revue with Hal Harris and the Lo Lifers, the joint's house band. Testify!