Historical clue formulations

• Extremely soft, in music: Abbr. — 2026-09-20
• Very softly, in music — 2020-04-21
• Marking for a very soft passage — 2017-05-19
• Very, very soft, in music — 2010-09-07
• Extremely softly, in music — 2009-03-08
• Very, very soft, in music — 2006-06-04
• Supremely softly, in music — 2003-09-23
• Very, very softly, in music — 1999-12-03