Miniature (illuminated manuscript) from: Liber choralis parvus continens missas vesperas et alia officia par S. Leonardi confes
Interesting Composer who would be fun to have cameo in first half of 13th century setting (i.e. wip):
Medeival music with Manuscripts
Farya Faraji -- not just medieval, but over all fascinating discussions of historically accurate performance, (though the following is close enough for current wip:)
