Gregorian chant is the central tradition of Western plainchant, a form of monophonic, unaccompanied sacred song in Latin of the Roman Catholic Church. Gregorian chant developed mainly in western and c
The Introit Gaudeamus omnes, scripted in square notation in the 14th–15th century Graduale Aboense, honors Henry, patron saint of Finland. Gaudeamus omnes
Two plainchants from the Mass Proper, written in adiastematic neumes, from Codex Sangallensis 359 [de]