Related Clues:

• 'O Isis und Osiris,' e.g.
• Fat lady's solo?
• Diva's performance, sometimes
• Opera-house highlight
• Big moment at the Met
• Diva's big opera number
• 'Che gelida manina,' e.g.
• "Bravo!" elicitor at La Scala
• Soprano showcase
• Domingo offering
• Soprano ___
• 'Vissi d'arte,' for one
• Tenor's opera standout
• Song with a cadenza, perhaps
• Solo for Pavarotti