“Excepter have been known to wander through songs, dodging and sidestepping on their way to whatever target they might be chasing. But “Maids,” from their forthcoming album Familiar, gets right to the point. A pulsing beat launches immediately and never wavers, and Lala Harrison Ryan’s entranced vocals follow suit. The chugging rhythm and rippling synths push “Maids” forward, but her airy hums are ”