Historical clue formulations

• Melodious — 2021-10-10
• Melodic — 2018-01-17
• Melodic — 2017-04-14
• Melodious — 2017-01-27
• Melodious — 2014-12-07
• Melodic — 2014-04-04
• Melodic — 2013-06-25
• Songlike — 2012-04-05
• Songlike — 2010-05-09
• Melodious — 2007-12-01
• Melodic — 2007-06-17
• Not recitative — 2005-06-04
• Melodious — 2003-09-02
• Songlike — 2002-09-08
• Melodious — 2002-07-07
• Melodic — 2000-12-22
• Songlike — 1998-10-25
• Songlike — 1998-04-02
• Melodic — 1997-08-07
• Tuneful — 1994-12-22