Event Source's 35 year anniversary celebration took place at Cibrèo Privato, located on Euclid Avenue across the street from Playhouse Square.  Everyone met in a private bar located at the back of the restaurant for cocktails and hors d'oeuvres. Dinner was held in a separate room (between the restaurant and back bar) that I believe use to be used as a theater at one time.   Rock the House Entertainment Group (RTH) filled the room with music and ambient lighting.