12 motets (1 without text and incomplete), 7 French secular pieces, 2 textless pieces = 21
Clemens non Papa-2, Crecquillon-S, Guyot [Jo. castileti]-1, Lassus-4, Manchicourt-1, Palestrina [Gianetto]-S, (Richafort/ Verdelot)-1, anon-4
i + 71 paper folios, 112 x 158. Original ink foliation, 1-71. Original covers of cream-colored parchment. No index. Score format. Possibly copied by Alexander Nison (see below). Staff height 10. No decorative initials; text of poem "Musica Dei donum" copied on verso of front flyleaf, surrounded by painted ornamental border featuring scroll motifs and winged faces, in blue, red, green, and yellow. No watermarks visible.
1617 (date on front flyleaf). Copied in Rome. Original owner was Alexander Nison, organist at Church of Santa Maria sopra Minerva (inscription on front flyleaf).
Census-Catalogue of Manuscript Sources of Polyphonic Music 1400-1550