Drummer Kevin Shea has a long history as an irritant, musically speaking—he’s a provocateur or a source of chaos at least as often as he’s a timekeeper. In the late 90s—in the band Storm and Stress, with future Battles guitarist Ian Williams—he played his drums as if he were falling down a long flight of stairs, backward. And since moving to New York at the turn of the century he’s carried on inserting musical splinters beneath the fingernails of unwary listeners.