Related Clues:

• It may be light or grand
• ''Fidelio'' is one
• Orchestra piece
• Giacomo Puccini's work
• 'Nixon in China,' for one
• Massenet offering
• Kathleen Battle's bag
• Butterfly locale?
• Covent Garden event
• Musical show
• Beethoven wrote one
• "Faust," for one
• Rossini work
• Gig for Domingo
• Phantom's locale