Motetus Medieval polyphony in its manuscripts
Piece

Beata mater

John Dunstaple

Sources

ManuscriptFolioVoicesDateSource
Munich, Bayerische Staatsbibliothek, Clm 14274 ff. 8v–9r
choir-book: f.8v-9r
3 1425-1474 (15.2q und 15.3q) source