Motetus Medieval polyphony in its manuscripts
Piece

Quod promisit ab eterno die solvit hodierno

No composer named in the sources used here.

Sources

ManuscriptFolioNo. in the sourceVoicesGenreDateSource
Burgos, Monasterio de Santa MarĂ­a la Real de Las Huelgas, Las Huelgas Codex f. 132 146 2 conductus c. 1300 source