In 1995, she sang the role of Princess von Werdenberg in Richard Strauss' "Der Rosenkavalier" for the first time at the Salzburg Festival. Also in 1995, Studer appeared in concert with her hometown orchestra, the Midland Symphony Orchestra, in Midland, Michigan, during the orchestra's 60th anniversary season. In 1996, Studer sang the same role at the Vienna State Opera. That same year, Studer returned to the Royal Opera to sing the title role of Richard Strauss' "Arabella" and revisited the title role in "Aïda" opposite Waltraud Meier as Amneris in performances at the Bavarian State Opera. She sang Leonore in Beethoven's "Fidelio" at the Salzburg Festival in 1997 conducted by Sir Georg Solti.