Source: SK-BRsa (Bratislava) Slovenský národný archív - Antiphonary of Bratislava IVFolio: 109rSequence: 3Full text: Observa igitur et audi vocem meam et inimicus ero inimicis tuisFeast: Dom. 4 QuadragesimaeOffice: MGenre: VPosition: 01Cantus ID: 006143b