| Verfasser | Häufigkeit |
| Grimm, Thomas 1942- |
2 |
| Hampson, Thomas 1955- |
2 |
| Hämmerli, Jürg 1958- |
2 |
| Lecca, Marie-Jeanne ca. 20. Jh |
2 |
| Marrocu, Paoletta ca. 20. Jh |
2 |
| Newport, Vivienne 1951-2015 |
2 |
| Piave, Francesco Maria 1810-1876 |
2 |
| Scandiuzzi, Roberto 1958- |
2 |
| Verdi, Giuseppe 1813-1901 |
2 |
| Welser-Möst, Franz 1960- |
2 |
| Aba, Paulinho de |
1 |
| Alem, Jaime |
1 |
| Alves, Elione |
1 |
| Alves, José |
1 |
| Amazonas, José Roberto de Almeida |
1 |
| Ancient Egypt - New Technology (Veranstaltung) Bloomington, Ind |
1 |
| Bertrami, Jose Roberto 1946-2012 |
1 |
| Bethânia, Maria 1946- |
1 |
| Brown, Carlos |
1 |
| Chor der Oper Zürich |
1 |