Source: SK-Sk (Spišska Kapitula) Antiphonale ScepusienseFolio: 127vSequence: 2Full text: Quo progrederis sine filio pater quo sacerdos sancte sine diacono properas tu numquam sine ministro sacrificium offerre consueverasFeast: LaurentiiOffice: MGenre: RPosition: 2.1Cantus ID: 007502