Source: SK-BRsa (Bratislava) Slovenský národný archív - Antiphonary of Bratislava IIbFolio: 055vSequence: 1Full text: Nisi tu domine servabis nos in vanum vigilat oculi nostriFeast: Fer. 4 Hebd. 2 p.Ep.Office: V2Genre: APosition: 1Cantus ID: 003885