Source: PL-WRu I F 416 Cistercian Gradual (Silesia)Folio: 006rSequence: 2Feast: Fer. 6 Q.T. AdventusOffice: MASSGenre: GrCantus ID: g00511Mode: 2TFull text: Ostende nobis domine misericordiam tuam et salutare tuum da nobis