Source: Graduale latino-bohemicumFolios: 092r-093vFolio: 092rSequence: 1Full text (or incipit): O beata beatorum angelorum dominaOffice: MGenre: SqRubrics: ProsaFeast: De BMV Adv.Cantus ID: ah09098Form: MNotes: Rubric "Mi" at the right hand marginImage link: https://imagines.manuscriptorium.com/loris/AIPDIG-NKCR__VI_B_24_____2JDQ4VD-cs/I…
