Motetus Medieval polyphony in its manuscripts
Piece

Imperatrix caelestis militiae

Guillaume Dufay

Sources

ManuscriptFolioVoicesDateSource
Munich, Bayerische Staatsbibliothek, Clm 14274 f. 86r
choir-book: f.86r
3 1425-1474 (15.2q und 15.3q) source