Related Clues:

• Musical theatre
• Phantom's haunt, on Broadway
• Threepenny entertainment?
• Subject of Wayne Koestenbaum's 'The Queen's Throat'
• Britten creation
• Met tragedy, perhaps?
• 'Of all the noises known to man, ___ is the most expensive': Molière
• "Tosca" or "Pagliacci"
• "The Magic Flute," for one
• Horse trailer?
• "Don Giovanni," for example
• 'Turandot,' e.g.
• Frothy bubbles
• It may be comic
• "Porgy and Bess," for one