The San Francisco Ballet’s Program 2, which finished its run late last month, started strong. Wayne McGregor’s “Chroma” — one of three works making up the program — looked more like contact sport than ballet, an effect strengthened by the horn-and percussive-heavy, action-film score by Joby Talbot and Jack White III. MacGregor was not trained in classical ballet, and his choreography diverges from the classical in several refreshing ways. Ballet’s traditional “lift”—the illusion that the dancers do not share our subjection to the laws of gravity—was tossed out. The dancers seemed to revel in their weightiness, often moving in ways […]