Source: Graduale PraemonstratenseSiglum: CZ-Pst DA I 5Folios: 252v-254rFolio: 252vSequence: 1Full text (or incipit): Sacrosancta hodierneGenre: SqRubrics: De sancto AndreaFeast: AndreaeFeast (text): AndreaeCantus ID: ah54030Form: M