Low opera voices

• Some operatic voices
• Players of Fiorello and Dr. Bartolo in "The Barber of Seville"
• Some Met stars
• Those playing the role of Boris Godunov
• Some singers
• Choir section
• Deep voices
• Ezio Pinza et al
• They often end on a low note

Wiktionary Word definitions in Wiktionary
n. (plural of basso English)