Source: PL-WRu I F 414 Cistercian Gradual (Silesia)Folio: 091vSequence: 4Feast: Alexandri et Soc.Office: MASSGenre: InVCantus ID: g00113aMode: 2Full text: Benedicam dominum in omni tempore semper laus ejus in ore meoNotes: Alexandrii Eventii et Theodoli