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 the Author and Germaine Pitt (or 'Lady Amherst', unrelated to any of Barth's previous novels), the correspondents are: Todd Andrews (from The Floating Opera), Jacob Horner (from The End of the Road), A.B. Cook (a descendent of Burlingame in The Sot-Weed Factor), Jerome Bray (associated with Giles Goat-Boy and Chimera) and Ambrose Mensch (from Lost in the Funhouse).