Source: PL-Wn 12496 IV Graduale cistercienseFolio: 065rSequence: 12Feast: Cathedra PetriOffice: MASSGenre: GrCantus ID: g00027Mode: 2TFull text: Exaltent eum in ecclesia plebis et in cathedra seniorum laudent eum External image link: Image link