When it comes to by-the-books, sentimental indie rock, Atlanta’s Manchester Orchestra is … well, they’re really by the books. This year’s Simple Math — part of which was recorded at Nashville’s Blackbird Studios — is riddled with mid-tempo anthems and ballads about by-the-books, young-man, indie-rock fare: missing people (strings!), feeling lost (guitar solo!), having a drink, repeat. Tonight’s openers, White Denim, however … well, we can’t sing their praises enough. (And if you’re a regular reader, you’ll know I’m not just blowing smoke. We’ve talked about the Austin-based, virtuosic, garage-psych four-piece so much that we should maybe lay off for a bit. But seriously, their three releases this year — D, Live at Third Man Records and Takes Place in Your Work Space — are all contenders for year-end rock lists.) Point is, if you’re looking for the meat in the sandwich that is tonight’s bill, then look right where it ought to be: in the middle. And a note to fans of Bradford Cox’s superb outfit Deerhunter: It’s The Dear Hunter. Different dudes. Sorry.