THIS JULY, after more than a year of working quietly as the artist-in-residence at the Fabric Workshop and Museum in Philadelphia, Jayson Musson finally revealed His History of Art, a raucous multimedia installation featuring three episodes of a sidesplitting sitcom starring Musson as Jay, a pontifical art collector in a corduroy suit, and his unlikely roommate Ollie, a permastoned puppet rabbit. Pablo Picasso, Gertrude Stein, and the Venus of Willendorf make cameos, the latter inspiring an orgy. Produced and filmed inside the museum, His History’s sets and props which alternately needle, salute,