Baltimore's bespectacled, classically trained electro wunderkind Dan Deacon—who used to play tuba for Langhorne Slim and earned a graduate degree in electro-acoustic and computer music composition—airs the upbeat weirdtronica of his prolific catalogue. He's an unlikely looking hipster, but Deacon's hell-for-leather enthusiasm is genuinely infectious, and he sure knows how to work a crowd.