| Verfasser | Häufigkeit |
| Vassallo, Jesús |
6 |
| Silva, Nuno Vassallo e 1961- |
5 |
| Fellenstein, Craig |
3 |
| Ralston, Rachel |
3 |
| Rooney, Deirdre |
3 |
| Vassallo, Jaclyn |
3 |
| Vassallo, Jaqueline 1969- |
3 |
| Vassallo, Jody |
3 |
| Vassallo, Michael J. |
3 |
| Metropolitan Opera Chorus |
2 |
| Metropolitan Opera Orchestra |
2 |
| Pereira, João Castel-Branco |
2 |
| Vassallo, Franco 1969- |
2 |
| Vassallo, José |
2 |
| Agard, John 1949- |
1 |
| Bailey, Gauvin Alexander 1966- |
1 |
| Bell, Blake |
1 |
| Bellini, Vincenzo 1801-1835 |
1 |
| Bergdoll, Barry 1955- |
1 |
| Blythe, Stephanie 1970- |
1 |