Anne Teresa De Keersmaeker and her company Rosas have long inhabited the post-modernist world of alternative spaces. Buter her new work “Rain”, writes Tobi Tobias, “makes them fit for an opera house—the venue, laden with tradition, on which postmodernism originally turned its back in contempt. Such a development is both ironic and inevitable—the mainstream is a magnet for the work of its rudest antagonists—and De Keersmaeker’s piece is very handsome indeed.”