Choir book written in Spain, on parchment, including music for a mixture of masses and offices, square notation on staves of five red lines, bar lines, some painted initials: (fols. 1-10) sequence Dies Irae for All Souls Day; (fols. 10v-40, 41-42, 42v-44, 44v-46, 46v-52) offices for Christmas Day, Stephen, John the Evangelist, Holy Innocents, Name of Jesus and…