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
Hansel and Gretel (opera) and continue eating. The witch comes out of the house and catches Hansel with a rope. As Hansel tries to escape, the witch explains that she is Rosine Leckermaul (literally, "Rosina Tastymuzzle"), and that she likes nothing better than to feed children sweets. Hansel and Gretel are suspicious of the witch, so Hansel frees himself from the rope and he and Gretel begin to run away. The witch takes out her wand and calls out, "Stop!" Hansel and Gretel are frozen to the spot where they stand. Using the wand, the witch leads Hansel to the cage. The witch leaves