How do you fit a choral group into a tour van? Well, you don’t. The ambient duo Stars of the Lid recorded its latest, 2007’s double-disc And Their Refinement of the Decline, with the help of a string section, a horn section, and something called the Saint-Jean-Baptiste au Béguinage Children’s Choir. But don’t expect the Brussels- and Los Angeles-based outfit to bring all of those kiddies on the road. The band’s current tour features a mere string trio, which should be more than enough. Stars of the Lid, after all, traffics not in massive walls of sound but in gentle, Gyargy Ligeti-like swells that can be performed by a couple of dudes with some effects pedals. Of course, this isn’t just any couple of dudes: As a song title like Refinement’s “December Hunting for Vegetarian Fuckface” might suggest, Stars of the Lid is invested in something other than a pleasantly anonymous listening experience. Stars of the Lid performs with Christopher Willits and Hammock at 8:30 p.m. at Iota Club & Cafe, 2832 Wilson Blvd., Arlington. $14. (703) 522-8340.