Christo’s Central Park Gates are art, sure. But they’re also a kind of dance through the park, writes Tobi Tobias. “The project as a whole makes a major part of its impact through repetition. This repetition, as you tread The Gates’ paths, deftly turns footfall into drum- or heartbeat. Martha Graham used the same steady-pulse phenomenon in the formally paced entrances and exits that frame the sections of her Primitive Mysteries. Laura Dean, choreographing to the music of Steve Reich, made it the keystone of her contribution to postmodern dance.”