a mythic dance masterpiece is reborn

In a large, airy studio inside English National Ballet’s headquarters, a white Rubik’s Cube of a building on London City Island, nine dancers are gliding across the floor, their lithe bodies moving through the air as though swimming underwater. Upstairs in the atelier, among rows of plastic boxes stacked with sequins, beads and shimmering braid, costumiers are busily sewing the dancers’ looks: bolts of pink, cream and electric-blue Lycra are being fashioned into 1920s-era pleated…