Medieval music fragments on vellum

Vellum

Vellum is prepared animal skin or membrane, typically used as writing material. Parchment is another term for this material, from which vellum is sometimes distinguished, when it is made from…
Illuminated gradual manuscript

Graduals

Graduals. The gradual is a chant or hymn in the Mass, the liturgical celebration of the Eucharist in the Catholic Church, and among some other Christians. It gets its name…