Historical clue formulations

• Church songbook — 2025-04-07
• Book with psalms — 2020-01-28
• Book that might include "Silent Night" — 2019-12-24
• Item on the back of a pew — 2017-11-02
• Sunday music book — 2006-08-08
• Sunday songbook — 1996-04-10
• Sunday book — 1994-03-25