Source: PL-PŁsem MsEPl 12 Antyfonarz z Płocka, pars de temporeFolio: 005wSequence: 4Feast: Nativitas DominiOffice: V2Genre: APosition: 5Cantus ID: 002106Mode: 8Differentia: G1Full text: De fructu ventris tui ponam super sedem meamNotes: ps Memento