famous banquet scene wherein Macbeth is haunted by the sight of  Banquo's  ghost).   In this scene from a 1972 staging of Verdi's  Macbeth at England's Glyndebourne Opera Festival, no amount of acting by Kostas Paskalis  (Macbeth) and Josephine Barstow (Lady Macbeth) can lighten the feel of the production design. Working carefully