This book explores how the Enlightenment aesthetics of theater as a moral institution influenced cultural politics and operatic developments in Vienna between the mid-eighteenth and early nineteenth centuries. Moralistic viewpoints were particularly important in eighteenth-century debates about German national theater. In Vienna, the idea that vernacular theater should cultivate the moral sensibilities of its German-speaking audiences became prominent during the reign of Empress Maria Theresa, when advocates of German plays and operas attempted to deflect the imperial government from...