It’s not immediately clear that there’s an art show happening at Von. The Bleecker Street wine bar always has art up, often the work of Charles von Herrlich, the bar’s owner. If anything, the pieces now hanging seem more eclectic, less unified,…

On a recent balmy night, in the courtyard of the Museum of Modern Art, I watch a dozen adults hop excitedly between platters of white, gray, and black arrayed in a circle. They move at a waltzlike pace, stepping, stopping, pointing. This strange spec…