On paper, Rubblebucket could seem like a hot mess. But the idiosyncratic eight-piece band — born at the University of Vermont, nurtured around Boston, and subsequently transplanted, perhaps inevitably, to Brooklyn — has fused its own fashion of heady dance-pop that somehow just works. On the strength of a style melding propulsive polyrhythms, syncopated horns, New Wave-era art-school rock, and gleaming pop, all within a slyly psychedelic aesthetic, Rubblebucket may be on the verge of a breakthrough. The band plays the Paradise on Friday.