Related Clues:
- Price production
- ''Don Giovanni,'' for one
- Firefox alternative
- 77-Across is one
- Marx Brothers setting
- Wagnerian production
- ''Dido and Aeneas,'' for one
- Word with ''soap'' or ''grand''
- 33-Down's field
- "Orfeo," e.g.
- "Fidelio," for one
- Carmen or Aida
- Wagner composition
- 'Aida' is one
- 'Fidelio' or 'Faust'