Related Clues:

• Member of the choir
• Operatic singer
• Boito's Mefistofele, e.g.
• Sax range
• Gigli, e.g.
• Deep voice
• Low range
• Tone
• Opera hero, often
• Vibe
• Pavarotti, notably
• Jan Peerce, e.g.
• Deep performer
• Bocelli's pitch
• Méphistophélès player in 'Faust'