That social invitation probably the same reason that a good deal of punk-influenced art-school bands, like occasional Matt and Kim tour-mates Double Dagger and the Death Set, prefer to set up in the mosh pit, or at least do the majority of their performing from there: It's democratic, intimate, and makes concerts feel like dance parties, without the self-consciousness of a performance. But Matt and Kim don't play from the floor. She pounds her drums and he sings and does hand-stands on his keyboard rig from the stage, both of them upfront and close to one another, with flickering slides of their album cover projected on screens behind them. The charm is in their intense familiarity and bubbling enthusiasm for what they're doing. "Kim," Matt will say before most songs. "Kim, are you ready?"