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He has since returned to that opera house to sing Scarpia in Giacomo Puccini's Tosca (2004, with Carol Vaness in the title role) and Wotan in Richard Wagner's The Ring Cycle (2008 and 2010).
After several seasons at Stuttgart (1975–1979) she sang Sieglinde in Patrice Chéreau's production of the The Ring Cycle (1979) at the Bayreuth Festival, where she also sang Isolde (1986).