In a recent review for his latest work, “New Yorker” dance critic Joan Acocella describes Mark Morris as the greatest new choreographer of the 1980s onward. He brings his group to Spoleto with a selection of works created from 1992 to 2008. As Acocella notes “Morris knows how to create an ambiguity that feels like clarity. Often in his work, a person, after doing something that you think you understand, does something that utterly contradicts that. Or he goes on doing his thing, but someone at the side of the stage does something altogether different.” And perhaps he is also doing exactly what an artist of our time should do: create instances of confusion and contradiction and offer a couple of sporadic, blinding flashes of vision and clarity. Teatro Romano, tel. 0743776444, www.festivaldispoleto.com.