Live Performing Arts Are Returning to N.Y.C., but Not All at Once Starting on Friday, theaters, comedy clubs and other arts venues can open at 33-percent capacity. The formula doesn’t work for everyone. Conrad Tao performing Gershwin’s “Rhapsody in Blue” for a dance by Caleb Teicher as part of the Works and Process bubble performances on Tuesday at the Guggenheim Museum.Credit...Krista Schlueter for The New York Times Published April 1, 2021Updated April 2, 2021 This is the weekend New York City’s theaters, music venues and comedy clubs have been waiting for. The chance to start holding performances again for a live, flesh-and-blood audience.