Source: PL-WRu I F 414 Cistercian Gradual (Silesia)Folio: 004rSequence: 1Feast: Sabbato Q.T. AdventusOffice: MASSGenre: IntrCantus ID: g00514Mode: 2Full text: Veni et ostende nobis faciem tuam domine qui sedes super cherubim et salvi erimus