On their second album as Grave Pleasures, the band formerly known as Beastmilk have revived the infectious post-punk songwriting that made the latter’s Climax one of the most compelling records of 2013. Taking their favored nuclear-fallout-as-love-song formula to gloriously catchy heights with “Doomsday Rainbows,” “Be My Hiroshima,” and the highly danceable “Falling for an Atom Bomb,” the Finnish five-piece employ stentorian vocals, thundering bass grooves, and post-apocalyptic beats to detonate a mushroom cloud of modern romance rock.