| "The Tempest" or "Otello" | 45 |
| "The Phantom of the ___" | 34 |
| "The Makropulos Affair," for one | 42 |
| "Simon Boccanegra," e.g. | 34 |
| "Schwanda the Bagpiper," e.g. | 39 |
| "Salome," e.g. | 24 |
| "Rienzi" or "Jenufa" | 40 |
| "Quadrophenia": The Who's other rock ___ | 54 |
| "Quadrophenia": The Who's other rock __ | 53 |
| "Porgy and Bess," for one | 35 |
| "Porgy and Bess," e.g. | 32 |
| "Pique Dame," e.g. | 28 |
| "Peter Grimes," e.g. | 30 |
| "Parsifal," e.g. | 26 |
| "Otello", for example | 31 |
| "Otello" is one | 25 |
| "Otello," for one | 27 |
| "Otello," e.g. | 24 |
| "Orfeo," e.g. | 23 |
| "Orfeo ed Euridice," e.g. | 35 |
| "Of Mice and Men" became one in 1970 | 46 |
| "Oberto" is one | 25 |
| "Norma" or "Tosca" | 38 |
| "Norma" or "Martha" | 39 |
| "Norma" or "Fidelio" | 40 |
| "Norma" or "Carmen" | 39 |
| "Norma" is one | 24 |
| "Norma," e.g. | 23 |
| "No good ___ plot can be sensible": W.H. Auden | 56 |
| "No good ___ plot can be sensible ...": W. H. Auden | 61 |
| "Nixon in China", e.g. | 32 |
| "Nixon in China," for example | 39 |
| "Nixon in China "is one | 33 |
| "Nabucco," for one | 28 |
| "Martha" or "Louise" | 40 |
| "Martha" is one | 25 |
| "Martha," e.g. | 24 |
| "Manon," for one | 26 |
| "Manon," e.g. | 23 |
| "Lulu" or "Zaza" | 36 |
| "Lulu" or "Wozzeck" | 39 |
| "Lulu" or "Norma" | 37 |
| "Lulu" or "Louise" | 38 |
| "Lulu" or "Lakme" | 37 |
| "Luisa Miller," e.g. | 30 |
| "Lucrezia Borgia," for one | 36 |
| "Louise," for one | 27 |
| "Lohengrin," for one | 30 |
| "Les Troyens," e.g. | 29 |
| "La Gioconda," e.g. | 29 |
| "La Bohème" or "La Traviata" | 51 |
| "L'Africaine," e.g. | 33 |
| "Il Trovatore," for one | 33 |
| "Il Trovatore," e.g. | 30 |
| "Idomeneo," e.g. | 26 |
| "I like every kind of music except rap, country, and ___" | 67 |
| "How wonderful ___ would be if there were no singers": Rossini | 72 |
| "Hänsel und Gretel," e.g. | 38 |
| "Grand" music | 23 |
| "Genoveva" was the only one written by Robert Schumann | 64 |
| "Fidelio" for one | 27 |
| "Faust" or "Don Giovanni" | 45 |
| "Falstaff" or "Otello" | 42 |
| "Falstaff," for one | 29 |
| "Falstaff," for example | 33 |
| "Falstaff," e.g. | 26 |
| "Euridice" was the first complete one | 47 |
| "Euridice" is one | 27 |
| "Ernani" or "Orfeo" | 39 |
| "Ernani," for one | 27 |
| "Ernani," e.g. | 24 |
| "Don Giovanni", for one | 33 |
| "Die Walkure," e.g. | 29 |
| "Die Fledermaus," e.g. | 32 |
| "Dido and Aeneas," for an early English example | 57 |
| "Der Rosenkavalier," for one | 38 |
| "Deidamia" was Handel's last | 42 |
| "Carmen" or "Tosca" | 39 |
| "Carmen" or "Faust" | 39 |
| "Carmen" or "Così Fan Tutte" | 51 |
| "Carmen" for one | 26 |
| "Billy Budd" or "Peter Grimes" | 50 |
| "Anna Nicole," for one | 32 |
| "Anna Bolena" or "Anna Nicole" | 50 |
| "Aïda" or "Carmen" | 41 |
| "Aida" | 16 |
| "A Night at the ___" (Queen album) | 44 |
| "___ in English is, in the main, just about as sensible as baseball in Italian": H.L. Mencken | 103 |
| 'William Tell,' e.g. | 28 |
| 'Turandot,' e.g. | 24 |
| 'Tosca' or 'Turandot' | 37 |
| 'Tosca,' for one | 24 |
| 'Tosca,' e.g. | 21 |
| 'The Phantom of the --' | 31 |
| 'Rigoletto,' for one | 28 |
| 'Otello,' e.g. | 22 |
| 'Orfeo,' e.g. | 21 |
| 'Fidelio' or 'Faust' | 36 |
| 'Fidelio' is one | 24 |
| 'Ernani,' e.g. | 22 |