NL-Uu 406

Sequences represent late 14th-c. editions to a 12th-c. antiphonale. The first group (a1-6) are written on 4 folios added at the beginning of the manuscript by a hand using German diastematic neumes, a hand consistent with other contemporary hands from the Utrecht diocese. The final two sequences (x1-2) are added as single entities at ends of offices by different hands. The sequence for Katherine may be earlier than the late 14th century.