Source: PL-WRu I F 414 Cistercian Gradual (Silesia)Folio: 028rSequence: 5Feast: Sabb. Hebd. 3 Quad.Office: MASSGenre: GrCantus ID: g00772Mode: 1Full text: Si ambulem in medio umbrae mortis non timebo mala quoniam tu mecum es domine