Katie Derham introduces the Vienna Philharmonic Orchestra performing its Summer Evening Concert in the grounds of Vienna's Schonbrunn Palace. Lorin Maazel is the conductor at this year's open-air event which features music by the geniuses of Italian and German opera, Verdi and Wagner, marking the 200th anniversary of both composers' birth. There are overtures and arias from Aida, The Force of Destiny and Luisa Miller by Verdi, while music by Wagner includes Lohengrin, Meistersinger and Tristan and Isolde. This being Vienna however, there is an exciting encore of music by Johann Strauss.