Works M
| Maa | Work | |
| Macbeth | Work | |
| Madama Butterfly | Work | |
| Maddalena | Work | |
| Manon | Work | |
| Manon | Work | |
| Manon Lescaut | Work | |
| Marcello | Work | |
| Mare ja hänen poikansa | Work | |
| Margariinitehtaan miehet | Work | |
| Maria Egiziaca | Work | |
| Maria Golovin | Work | |
| Mariage | Work | |
| Marilyn | Work | |
| Mario and the Magician | Work | |
| Marionettes | Work | |
| Martha | Work | |
| Maskarade | Work | |
| Maske in Blau | Work | |
| Mathis der Maler | Work |