Dancing in the Streets brings a program to the steps of the New York City Library. “”The thing about a staircase, though, is that, once you’ve gone down, there’s no place to go but up, and so the dancers stood and did so, which was something of an anti-climax. Apart from a repeat of the lava-pouring-down-the-mountainside roll (compelling even the second time around), the balance of the dance consisted largely of the figures’ grouping and regrouping in formal clusters and making semaphoring sorts of gestures with their arms.”