Positive Rising: Part 1 bucks and heaves with disparate, heady atmospheres and avalanching instrumentation that pushes the DZ Deathrays into corners they’ve never visited. What’s on offer is a DZ Deathrays that swings quickly from leaner and meaner, to blown-out and expansive — and sometimes downright weirder — while still packing enough punches to be destined to soundtrack flying bodies in mosh pits the world over.