Historical clue formulations

• Short piece at La Scala — 2016-05-05
• Short thing for a diva — 2015-02-15
• Short opera piece — 2014-08-12
• Short operatic song — 2013-06-03
• Short operatic piece — 2012-07-25
• Mozart's "Un bacio di mano," e.g. — 2011-02-20
• Short opera piece — 2009-11-18
• Puccini's "O mio babbino caro," e.g. — 2005-06-18
• Short operatic piece — 2001-07-08
• Little melody — 2001-03-18
• Brief solo — 1997-06-20
• Soloist's number — 1995-04-08
• Light song — 1995-03-30
• Piece for Pavarotti — 1994-10-11
• Short melody — 1994-06-29
• Shorter version of 26-Across — 1994-05-14
• Short vocal solo — 1993-12-15