Regular performances as lieder singer in London, New York, Washington and Vienna. Engagements with the most distinguished opera houses. Successful collaborations with orchestras, like the Israel Philharmonie Orchestra, Berlin Philharmonie, the Gewandhaus Orchestra in Leipzig and the Cleveland Orchestra. About 5O CD recordings of works by Haydn, Mozart, Beethoven, Schubert, Schumann, Brahms as well as recordings and intensive exploration of works by the Nazi Regime persecuted composers, like V. Ullmann and E. Krenek. Recordings of works by Schumann, Schubert and Brahms. “Ein deutsches Requiem” was awarded with a Grammy. Head of a lied and oratorio class at the Mozarteum in Salzburg since 1998. Master classes in Europe and North America. Head of the international summer academy, Mozarteum Salzburg.