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
Romeo und Julia (Sutermeister opera) a celestial chorus celebrate the union in death of the two lovers. Sutermeister: "Romeo und Julia" – Bavarian Radio Chorus, Tölzer Knabenchor, Munich Radio Orchestra Romeo und Julia (Sutermeister opera) Erik Levi explains that the opera: "presents a synthesis of Romantic and impressionist elements. It marks a ... return to the conception of opera as a sequence of closed forms, incorporating ... stylistic features related to madrigal, oratorio and pantomime." It was first performed on 13 April 1940, at the Semperoper, Dresden, under the musical direction of Karl Böhm, who also commissioned the work, with Maria Cebotari as Julia, and