Opera in German such as opera seria. Some Baroque composers, such as Reinhard Keiser, did try to challenge Italian dominance, and the theatre principal Abel Seyler became an eager promoter of German opera in the 1770s, but it was only with the appearance of Mozart that a lasting tradition of serious German-language opera was established. Mozart took the simple, popular genre of "Singspiel" and turned it into something far more sophisticated. Beethoven followed his example with the idealistic "Fidelio"; and with "Der Freischütz" of 1821, Weber established a uniquely German form of opera under the influence of Romanticism. Weber's innovations were eclipsed by
Fidelio Fidelio, his wife Leonore in disguise, but tells Fidelio that there will be reward for the good deed in Heaven ("Euch werde Lohn in bessern Welten"—"You shall be rewarded in better worlds"). Fidelio further begs Rocco to be allowed to give Florestan a crust of bread, and Rocco consents. Rocco obeys his orders and sounds the alarm for Pizarro, who appears and asks if all is ready. Rocco says that it is, and instructs Fidelio to leave the dungeon, but Fidelio hides instead. Pizarro reveals his identity to Florestan, who accuses him of murder ("Er sterbe! Doch er soll erst