Answer
Yes, Birgit Nilsson has performed many vocal works, including operas, operettas, oratorios, and Lieder. She is best known for her interpretations of Wagnerian roles, such as Brünnhilde in Der Ring des Nibelungen, Isolde in Tristan und Isolde, and Sieglinde in Die Walküre. She also performed roles in operas by Verdi, Puccini, Mozart, and Strauss. Nilsson was considered one of the greatest sopranos of the 20th century.