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
Metropolitan Opera radio broadcasts In the first broadcast season only "Hänsel und Gretel" and "Das Rheingold" (February 26, 1932) were presented in their entirety; most operas were only heard partially. From the start of the 1933-34 season, complete opera broadcasts became the norm. Since 1931 most broadcasts have been of Saturday matinee performances, with only a handful of exceptions such as the opening night of the new Met, which featured a broadcast of Samuel Barber's "Antony and Cleopatra" on Friday September 16, 1966. The live radio broadcasts were originally heard on NBC, and became a staple of its Blue Network. Starting in 1944 the