Source: Graduale latino-bohemicumFolios: 115r-118rFolio: 115rSequence: 1Full text (or incipit): A rea virgaOffice: MGenre: SqRubrics: AliaFeast: De BMV Adv.Cantus ID: ah53106aForm: MNotes: Rubric "Re Ut" at the right marginImage link: https://imagines.manuscriptorium.com/loris/AIPDIG-NKCR__VI_B_24_____2JDQ4VD-cs/I…