Source: PL-WRu I F 413 Cistercian Gradual (Silesia)Folio: 010rSequence: 3Feast: Nativitas DominiOffice: MASSGenre: AllCantus ID: g00550Mode: 2TFull text: Alleluia Dominus regnavit decorem induit induit dominus fortitudinem et praecinxit se virtute