Historical clue formulations

• Burns's "The Soldier's Return" and others — 2020-05-16
• "Yesterday" and "The Rime of the Ancient Mariner," e.g. — 2019-05-03
• "Oh! Susanna" and others — 2016-04-19
• Sentimental songs — 2011-05-03
• Light rock songs — 1999-04-11