| Verfasser | Häufigkeit |
| Adamo, Mark 1962- |
2 |
| Belcher, Daniel |
2 |
| Ciesinski, Katherine 1950- |
2 |
| DiDonato, Joyce 1969- |
2 |
| Houston Grand Opera Orchestra |
2 |
| Jones, Gwendolyn |
2 |
| Lloyd, Margaret |
2 |
| Maddalena, James 1954- |
2 |
| Novacek, Stephanie |
2 |
| Summers, Patrick 1960- |
2 |
| Tappan, Stacey |
2 |
| Belcher, Gerald L. |
1 |
| Belcher, Margaret L. |
1 |
| Shelton, Chad |
1 |
| Shelton, Chad 1971- |
1 |
| Webster, Peter |
1 |