Related Clues:

• Gigli, e.g.
• Certain singing voice
• Palo ___, Calif.
• Some singers
• Voice from the loft
• Tijuana traffic sign
• Tone
• Quarter of a quartet, perhaps
• Countertenor range
• She's deep
• Opera hero, often
• Vibe
• Counter-tenor
• Pavarotti, notably
• Certain voice