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
Fantasy and Fugue on the Theme B-A-C-H Fantasy and Fugue on the Theme B-A-C-H Fantasie und Fuge über das Thema B-A-C-H (also in the first version known as "Präludium und Fuge über das Motiv B-A-C-H", title in English: "Fantasy and Fugue on the Theme B-A-C-H") (S.260i/ii [1st/2nd version], S.529i/ii [piano arrangement of 1st/2nd version]) is an organ fantasy on the BACH motif composed by Franz Liszt in 1855, later revised in 1870. Both versions were transcribed for solo piano by the composer. The piece was dedicated to Alexander Winterberger (who also played it on the premiere, 13 May 1856) and published by Breitkopf & Härtel in 1856.