Source: SK-KO (Košice) Graduale H III/3 dis 11Folio: 002rSequence: 6Full text: Custodi me domine ut pupillam oculi sub umbra alarum tuarum protege meFeast: Fer. 5 Hebd. 1 Quad.Office: MASSGenre: GrCantus ID: g01179Mode: 1