As Javelin, cousins Tom Van Buskirk and George Langford perform what seem like lost dance anthems from an unkempt disco—a little poppy, a little arty and irredeemably goofy—melding samples with original material, while flirting with an iPod’s worth of genres. The weirdo sound matches up perfectly with spastic Bostonites Guerilla Toss, whose No Wave–y noise punk suggests a funked-up Melt-Banana.