| PETERGRIMES | Benjamin Britten opera first performed in 1945 (5,6) |
| BILLYBUDD | Benjamin Britten opera first produced in London in 1951 |
| BILLY | Benjamin Britten opera first produced in London in 1951 (5,4) |
| BUDD | Benjamin Britten opera first produced in London in 1951 (5,4) |
| TRIALBYJURY | Gilbert and Sullivan comic opera first performed in 1875 (5,2,4) |
| OWENWINGRAVE | Benjamin Britten opera for BBC TV first broadcast in 1971 |
| WINGRAVE | Benjamin Britten opera for BBC TV first broadcast in 1971 |
| OWEN | Benjamin Britten opera for BBC TV first broadcast in 1971 |
| NOSE | The ?, Dmitri Shostakovich opera first performed in full in 1930 (4) |
| RUSALKA | Three-act Dvorak opera first performed in Prague in 1901 (7) |
| AIDA | Opera first performed in Cairo in 1871 |
| LABAYADERE | Ludwig Minkus opera first performed in St Petersburg in 1877 (2,8) |
| INTERMEZZO | Two-act Richard Strauss opera first performed in Dresden in 1924 (10) |
| LAKME | Leo Delibes opera first performed in 1883 set in 19th-century British India (5) |
| FERRIER | Kathleen ?, British contralto who created the title role in Benjamin Britten opera The Rape of Lucretia |
| PEARS | Peter ?, English tenor who created the role of Peter Quint in 1954 Benjamin Britten opera The Turn of the Screw |
| ORFEOEDEURIDICE | Opera first performed in 1762 |
| SIRJOHNINLOVE | Ralph Vaughan Williams opera first performed in 1929 (3,4,2,4) |
| THEBARBER | Gioacchino Rossini opera first performed in 1816 (3,6,2,7) |
| OFSEVILLE | Gioacchino Rossini opera first performed in 1816 (3,6,2,7) |
