Here’s how the crowd breaks down for the annual Girls Rock! DC camp showcase at the 9:30 Club:

• Girls, running around, all over, everywhere, anywhere, carrying either Fenders or flowers, occasionally in conga lines
• Proud parents; you know these because they are saying things like, “I am the proud parent of the bass player for Toxic Vomit!” to whoever is potentially listening
• A UN mission’s worth of acutely enthusiastic women volunteers, clad primarily in sleeveless tees, marked by adrenaline flush and subtle envy for their younger charges
• Male rock fans wearing stylish biker caps and mustaches
• Suspect characters (difficult to distinguish from the rock fans)
• A brunch-bound crowd of gender-equality enthusiasts, whose interest in the mimosas to follow the show is matched only by their devotion to watching girls kick ass

This year’s public showcase proved to be pretty similar to last year’s, though the attendance was much, much larger. In fact, the spectacle of Girls Rock! DC seems near to overwhelming the performances of Girls Rock! DC. During one “triple threat” set of DJs, there seemed to be an awful lot of coolio volunteers playing and dancing on stage. Maybe the thrill of performing live before an almost epileptically engaged audience doesn’t wear off for girls who’ve already passed puberty?

Everyone knows, though, that this show isn’t really about girls or engagement or any of that stuff. It’s about rock, and Girls Rock! DC indeed delivered heaping boulders of sound. I was ready to pick up any split 7″ featuring Majestix — who was not just the best band to perform Saturday morning but my favorite new act of 2009. Majestix lets the beat build with two drummers commanding two full drumsets (a favorite setup of mine). Their guitarists draw inspiration from Sleater-Kinney, but they don’t shy away from a full crunching wall of noise a la Sabbath. From the start of their audacious one-song set, the twin vocalists seemed like a novelty, an underaged Luscious Jackson. Then, at the song’s chorus, Majestix’s twin singers dropped a ritornello jam in harmony. My muxtape was blown!

Check out DCist’s photos from the event by Nestor Diaz. Meaghan Gay also did some publicity stills. What do you say, Amanda? Sommer? Can we get Majestix for the next Unbuckled?