When indie-pop kids grow up and start listening to drum ‘n’ bass, triphop, and post-rock, they invariably get rid of their St. Christopher records. “All the songs sound the same,” they say as they hand over their singles and flexidiscs, hoping I can sell them through my Internet rarities catalog. It’s true: Just about every tune sets mainman Glenn Melia’s mournful baritone amid a delicate web of twinkling guitars, bubbling keyboards, and busy little drumbeats. But the trick is so dazzling you forget how many times the band has performed it. The real reason folks want to ditch their St. Christopher vinyl, I suspect, is that owning it makes them feel old. After all, the band has been around for more than 15 years, and you don’t maintain your indie cred by standing up for geezers. But good pop songs are timeless—and St. Christopher’s is pretty darn good. With the Saturday People and Black Hawaiian Flower Crusade at 9 p.m. at the Galaxy Hut, 2711 Wilson Blvd., Arlington. Free. (703) 525-8646. (Leonard Roberge)