Source: Kutnohorský graduál – Graduale de Kutná HoraSiglum: A-Wn 15501Folios: 231r-232vFolio: 231rSequence: 1Full text (or incipit): Ab arce sidereaGenre: SqRubrics2: De beata virgineFeast: De BMVFeast (text): Comm. BMV Cantus ID: ah08005Form: M
