Historical clue formulations

• Where most songs use their titular lyrics — 2025-06-03
• Feature of a classical Greek drama — 2021-01-24
• "How does it feel ...," in Dylan's "Like a Rolling Stone" — 2015-08-11
• Something to sing over and over — 2012-05-02
• Repeated part — 2005-04-27
• Kind of line — 2004-01-18
• Speak in unison — 1999-05-01