Like Saul Bellow for 21st-century Williamsburg, James Murphy returns every few years with a new set of brilliantly vivd personal anxieties and au courant anthropological data, rendered in a flawlessly inimitable style. Because you did as he requested and didn't listen to his new record when it leaked before the official release, you've only had a week to absorb This Is Happening, but the funky disco workouts — and frequent glam-rock allusions — should help tonight feel like the event that it is.