In the last few years, Belgium’s doyenne of dance Anna Terese de Keersmaeker has been collaborating on duets with younger artists—the French conceptual choreographer and Pina Bausch head Boris Charmatz; the piano prodigy Pavel Kolesnikov, who has performed the Goldberg Variations barefoot beside her. While she structures her ensemble pieces as tightly as the minimalist and Baroque music she reveres, these duets are more exploratory. They share the ethos of the vocabulary of running, walking, pivoting, and arm-swinging the choreographer has always favored. Her current collaborator fits the bill. Theater maverick Rabih Mroué, age 57—presently the subject of a massive Festival d’Automne “Portrait” of past works and premieres—is the Lebanese Spaulding Gray. He sits before an audience and talks, or, as he puts it, “I see, I analyze, I reflect, then I talk. I talk, and I doubt.” He is haplessly funny, even as, being Lebanese, the talk inevitably revolves around the dire effects of a corrupt idiot State. As for this joint project, aptly entitled A little bit of the moon, “For the duration of a performance, they will be drawing up the plans for a new world for all.” —Apollinaire Scherr