Pittsburgh’s art-rock four-piece Working Breed returns this May with its second full-length, Gaslighter, a rock-forward face for the veteran group known for its expansive musical vocabulary and energetic, theatrical live show. Gaslighter, just over half an hour of cathartic, singalong anthems, shapeshifting math-rock rhythms, haunting saw sounds and self-professed “angry trombone,” is as much a treat for the ears as it is a statement of intent. The fire of the past four years is down to a few dying embers, and Working Breed is stronger (and catchier) for it.