The Royal Opera House, Covent Garden, Ltd., general administrator: Sir David Webster presents The Royal Ballet, (founded by Ninette de Valois in 1931) from the Royal Opera House, under the management of S. Hurok, director: Frederick Ashton, assistant directors: John Field, John Hart, Michael Somes, principal conductor: John Lanchbery, resident choreographer: Kenneth Macmillan, guest conductor: Joseph Levine, "La Bayadere," music by Ludwig Minkus, choreography by Marius Petipa, revised and produced by Rudolf Nureyev, costumes by Philip Prowse, lighting by William Bundy, conductor: Joseph Levine (matinee), John Lanchbery (evening).