Source: PL-WRu I F 414 Cistercian Gradual (Silesia)Folio: 004rSequence: 6Feast: Sabbato Q.T. AdventusOffice: MASSGenre: GrVCantus ID: g00517aMode: 2TFull text: A summo caelo egressio ejus et occursus ejus usque ad summum ejus