Source: PL-PŁsem MsEPl 12 Antyfonarz z Płocka, pars de sanctisFolio: 008rSequence: 1Feast: Fabiani, SebastianiOffice: MGenre: VPosition: 01Cantus ID: 006663aMode: 8Full text: In commisso quoque fidelis in interventu strenuus