PVRIS — the Massachusetts-originated metal band-turned-pop-rock solo project of singer/songwriter, multi-instrumentalist and producer Lyndsey Gunnulfsen — has a big summer in store. Ahead of a July performance in Jacksonville, she has released the latest single from her forthcoming album EVERGREEN, the darkly seductive anthem “LOVE IS A…“ “Inspired by the French phrase ‘la petite mort,’ aka the ‘little death,’” as …