Motetus Medieval polyphony in its manuscripts
Piece

Stupeat natura fracta

No composer named in the sources used here.

Sources

ManuscriptFolioVoicesDateSource
Munich, Bayerische Staatsbibliothek, Clm 16444 folio not given
choir-book: f.IIav (rechts)
2 1300-1399 (14.sc) source