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) to her to be careful. Gretel pretends that she does not know what the witch means. The witch tells her to lift herself a little bit and bend her head forward. Gretel says that she is "a goose" and doesn't understand, then asks the witch to demonstrate. The witch, frustrated, opens the oven and leans forward. Hansel springs out of the cage, and he and Gretel shove the witch into the oven. They dance. The oven begins to crackle and the flames burn fiercely, and with a loud crash it explodes. "Scene 4" Around Hansel and Gretel, the gingerbread children