2 Masses, 1 Requiem Mass, 3 Magnificats, 4 psalms, 8 hymns, 12 motets = 30
(Guerrero)-8, (Morales)-2, anon-20
iii + 102 + i paper folios, 385 x 270. Original ink foliation. Original covers of brown leather tooled with gold, with metal clasps. Original index ("Table de las obras deste Libro de salmos, himnos, magnificas, Misses, i otros oficios"). One of a set of six choirbooks catalogued under this number at the Newberry Library; the other five apparently contain no pre-1550 repertory.
Late 16th century (from repertory and notation); early 18th century (BarwickFF). From the Convento de la Encarnación, Mexico City. Donated to the Newberry Library by Charles Lawrence Hutchinson in 1899.
Census-Catalogue of Manuscript Sources of Polyphonic Music 1400-1550