Historical clue formulations

• Low parts of an opera — 2023-11-10
• Operatic villains, often — 2020-12-20
• Opera's Don Pedro and Don Pasquale, e.g. — 2020-09-18
• Met villains, often — 2020-06-20
• They go low when others go high — 2020-06-05
• Low voices — 2020-02-18
• Low voices — 2018-10-14
• Deep voices — 2018-10-10
• Operatic villains, often — 2017-09-21
• Low voices — 2015-08-16
• Low voices — 2013-12-24
• Several "Boris Godunov" parts — 2013-01-24
• Low-voiced singers — 2011-06-06
• Low opera voices — 2006-04-17
• Several roles in "The Barber of Seville" — 2004-11-11
• Boito's Mefistofele and others — 2004-06-25
• Lowest parts — 2004-05-09
• Operatic villains, often — 2004-04-04
• Low men — 2003-08-31
• Often villainous operatic roles — 2003-03-13
• They have low ranges — 2001-12-21
• Operatic villains, often — 2001-07-04
• Operatic voices — 2001-05-29
• Boris Godunov singers — 2000-02-19
• Don Pasquale and others — 1998-09-06
• Some "Aïda" singers — 1998-03-01
• Deep voices — 1996-10-29
• Ezio Pinza and others — 1993-12-10