Bella Alten operatic career included six Metropolitan premiere performances – Adele in Die Fledermaus (1905), Gretel in Hänsel und Gretel (1905), Saffi in Der Zigeunerbaron (1906), Olga in Fedora (1906), Columbina in Le Donne Curiose (1912), and Lisetta in L'amore Medico (1914). In November 1905 when she sang Gretel in the premiere Metropolitan performance of Hänsel und Gretel, the composer Engelbert Humperdinck was in the audience. This opera received 11 performances that first season and was selected by Theodore Roosevelt's wife as a benefit for the Legal Aid Society. Alten sang Gretel in this opera every season she was with the Met
Theodor Körner (opera) full transliteration of the score and a performance of the entire opera are currently not envisaged. Theodor Körner (opera) Leyer und Schwert ("Lyre and Sword") (modern German spelling "Leier und Schwert") is a patriotic opera in five acts composed by Wendelin Weißheimer to a libretto by Louise Otto-Peters. Also known as Theodor Körner, the opera was composed in 1863/64 and premiered in Munich in 1872. The libretto is based on an episode in the life of the German poet and soldier Theodor Körner. The libretto was written by Louise Otto-Peters, who had already shown ardent interest in patriotic subjects as