It is a coupletes (strophic form), meaning it has multiple verses set to the same basic melody.
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"Chacun le sait" from Donizetti's La fille du régiment is a celebrated soprano aria often called the "Regimental Song," where the character Marie praises her regiment. Reputable sources for PDFs include the IMSLP full vocal score and a specific Volf.fr arrangement La fille du régiment (Donizetti, Gaetano) - IMSLP It is a coupletes (strophic form), meaning it
: Commenter en temps réel avec une équipe à distance. It is a coupletes (strophic form)