New to English National Ballet is Martha Graham’s fraught Errand into the Maze. Like the Balanchine, it premiered in New York in 1947, but looks back to Greek myth and inward to the conflicted psyche. Inspired by the tale of Ariadne and the minotaur, it was one of several Graham psychodramas that let antique legends unlock primal emotions: “everyone needs to savour the inner room inside himself,” she declared.