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Dietrich Fischer-Dieskau was a German baritone who is considered to be one of the greatest Lieder singers of all time. He is best known for his interpretations of the works of Schubert, Schumann, and Brahms. Fischer-Dieskau made his debut at the Salzburg Festival in 1948 and went on to perform in major opera houses around the world. He also made numerous recordings of Lieder, which are still highly regarded today.