Poor Dan Auerbach. Since the first Black Keys album arrived fifteen years ago, he’s been consistently portrayed as an ersatz Jack White. It was pretty inevitable, of course, as both singer-guitarist in a two-piece garage band and vinyl-loving champion of all things retro-rock, with Auerbach painted as the workmanlike copyist of White, the true artist. And while it’s true that none of Auerbach’s work has approached the heights of Elephant or White Blood Cells, he doesn’t have dodgy Bond themes or baffling collaborations with the Insane Clown Posse to explain away either. And, to be fair, he has produced a few…