This D.C.-based quartet is part of a long line of bands that have attempted to make six-string guitars irrelevant, but I don't think it has any highfalutin philosophical objection to guitar heroes: organist Amanda Kleinman showboats in a sweaty, rapturous way, indulging in indecent human-instrument relations just like Jimmy Page did with his violin bow and dragon suit. She insinuates herself obtrusively between Erick Jackson's bass lines and Jeff Schmid's drums, and the combination works wonderfully. Their fourth album, Baba's Mountain (Birdman), doesn't quite have the caffeinated restlessness of earlier discs; they're more willing to ride a theme long and reap all its rewards, as on the Sabbath rip "Imp Ahh." Their shifts and changes are now more graceful and rubbery than stiff and twitchy, and their already delightful sound, at once heavy and poppy and seriously silly, is much improved for it: everything in their garage-in-outer-space arsenal works in the service of hookiness. If they can come close to duplicating the delirious effects of the new album onstage, this gig will certainly justify their reputation for fantastic live shows. Q and Not U headlines; Food for Animals and Manhunter open. Mon 4/25, 7:30 PM, Logan Square Auditiorium, 2539 N. Kedzie, 773-276-3600 or 800-594-8499, $10. All ages.