1 Mass Proper section (as hymn substitute), 58 hymns (1 fragmentary),
2 motets = 61
F. Adriani-1, Carpentras-1, Dragoni-Palestrina-1, C. Festa-30, Lupachino-2, Mallapert [Robinus]-5 + 1?, Matelart II-2, Montanari-3, Palestrina-2, B. Roy-1, Stabile-5, Zoilo-1, anon-6
i + 158 paper folios, size unknown. Original ink foliation, 1-152 (last six folios unnumbered; some other numbers partially or completely obliterated by trimming or fraying. Original covers(?). Original index on ff. [i']-1 lists hymns in order of appearance (a few not listed). Main scribe possibly Annibale Stabile, maestro di cappella at San Giovanni in Laterano 1575-6; present manuscript probably copied partly from earlier manuscript (now lost) written by Robin Mallapert, maestro di cappella at San Giovanni 1548-9 (HayL, based on interpretation of title page). Motets on f. [157'] are later additions by one or two different hands. Inked calligraphic initials.
1575 (date on title page). Copied in Rome, for use at church of San Giovanni in Laterano.
Vol 4
Composers: Change "Matelart II-2" to "Matelart-2."
Census-Catalogue of Manuscript Sources of Polyphonic Music 1400-1550