Source: PL-Wn 12496 IV Graduale cistercienseFolio: 017vSequence: 4Feast: Fer. 5 Hebd. 1 Quad.Office: MASSGenre: GrCantus ID: g01179Mode: 1Full text: Custodi me domine ut pupillam oculi sub umbra alarum tuarum protege meExternal image link: Image link
Cantus Planus in Polonia 