THE PACK A.D. Unpersons thepackafterdeath.com Listening to the fourth album from this Canadian garage-rock duo, an image emerges of singer Becky Black. She’s red-eyed and sneering, hurt and angry, seconds away from either breaking down and bawling or bashing someone in the teeth. Her gnashing guitar riffs suggest the latter, as does Maya Miller’s total-war drumming. Their sound is violent and cathartic, and on “Rid of Me”—a start-stop rager...