Graduale oesa, Proprium de tempore, pars hiemalis
This is a 1330 manuscript gradual, a choir book of Latin chant for the winter part of the liturgical year, made for Franciscan friars and now held by a Swiss virtual manuscript library. Its pictures are close views of square-note chant on red and brown staves, with hand-painted blue and red initials and black textura lettering, offering a designer ideas for medieval ornamental lettering and historical musical notation.
