“Polka will never die.” That’s how terrified little coroner Waldo Butters keeps his courage up while tagging along with wizard-detective Harry Dresden, who’s lumbering through Chicago on the back of a zombified Sue the T. Rex in a memorable scene from Jim Butcher’s Dresden Files series. Butters is playing his one-man-band polka suit at the time, because the giant zombie needs rhythm to keep it animated and moving. That’s probably also the chant that’s kept Don Hedeker so very animated and moving all these years; the guitarist, songwriter, and superfan has gone through some dark times, but the energy of his punkified Polkaholics seems to provide him irresistible momentum.