Frances Fyfield explores the handwritten manuscript of the famous Operetta Die Fledermaus by Johann Strauss II. It's held in the Wienbibliotek and the library host is Dr Thomas Aigner. Joining him is the conductor Gerrit Priessnitz, Stephanie Houtzel who sings Orlovsky at the Wiener Staatsoper and Anja-Nina Bahrmann who performs the role of Adele with the Vienna Volksoper. Show less