opera | Metropolitan Opera | Royal Opera House | Sydney Opera House | Vienna State Opera | San Francisco Opera | New York City Opera | The Phantom of the Opera (1986 musical) | The Threepenny Opera | Opera | Doctors (soap opera) | Falstaff (opera) | Paris Opera | Royal Swedish Opera | Opera Australia | Lyric Opera of Chicago | Boris Godunov (opera) | The Beggar's Opera | Tannhäuser (opera) | Santa Fe Opera | opera house | Houston Grand Opera | Zurich Opera | Opera North | Dallas Opera | English National Opera | Welsh National Opera | Lulu (opera) | Faust (opera) | Eugene Onegin (opera) |
In addition to song writing, Thomas composed three larger works; The Picnic (1869), a children's operetta with a libretto by George Cooper; The Lady in the Mask (1870), an operetta with a libretto by George Cooper; and Diamond Cut Diamond (1876), a parlor opera in one act.