Historical clue formulations

• Short piece of classical music — 2026-02-26
• Short piano piece — 2026-01-20
• Light piano piece — 2022-06-07
• Short piano piece — 2018-05-29
• Harpsichord practice piece, maybe — 2012-09-15
• Short, light musical piece — 2012-08-12
• Shortish piano piece — 2010-05-23
• Short piano piece — 2010-05-12
• Short musical composition — 2005-03-04
• Short composition — 2000-03-05