Descripción o resumen: The scale and grandeur of Wagner's The Ring of the Nibelung has no precedent and no successor. It preoccupied Wagner for much of his adult life and revolutionized the nature of opera, the orchestra, the demands on singers and on the audience itself. The four operas-The Rhinegold, The Valkyrie, Siegfried and Twilight of the Gods - are complete worlds, conjuring up extraordinary mythological landscapes through sound as much as staging.