Many opera villains

• Met villains, often
• Mozart's Don Alfonso and Leporello
• Hines, Tozzi, etc
• Ezio Pinza et al
• Ones deeply involved in opera?
• Low men at La Scala
• Players of Fiorello and Dr. Bartolo in "The Barber of Seville"
• They often end on a low note
• Samuel Ramey and Ezio Pinza

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