| Date | Event |
| 13th c. | Bamberg Codex (motets) |
| 1240 | De mensurabili musica (Garlandia) |
| 1250 | Ars cantus mensurabilis (Franco) |
| 1290s | Aucun Lonc Tans (Petrus de Cruce) |
| 14th c. | Roman de Fauvel (monophony/polyphony) |
| | Squarcialupi Codex (Italian trecento) |
| | Las Huelgas (13th c. motets) |
| | Chantilly Codex (ars subtilior) |
| | Fenice fu (madr., Jacob of Bologna) |
| | Tolouse and Tournai Masses (3 v.) |
| 1300s | Garrit Gallus (3 v. motet, Vitry) |
| 1322 | Ars nova (Vitry) |
| 1323 | Papal Bull: Docta sanctorum |
| 1325 | Speculum musicae (Jacob of Liege) |
| 1350s | Codex Ivrea (Vitry) |
| 1360s | Missa Notre Dame (Machaut) |
