Source: SK-BRsa (Bratislava) Slovenský národný archív - Antiphonary of Bratislava IVFolio: 083rSequence: 2Full text: Dixit dominus ad Abraham ecce Sara uxor tua pariet tibi filium et vocabis nomen ejus IsaacFeast: Dom. QuinquagesimaeOffice: MGenre: VPosition: 01Cantus ID: 006563a