This is a very fragile ms, probably will not photograph well, but very valuable for the melodies. The book is put together in a very strange way, for processional antiphons are often intermingled with the sequences, probably because they were sung by the same cantor(s). Moreover, first sequence of the collection (no. 00) is not even in the sequentiary, but with a diverse collection of chants for dedicatio ecclesiae. The book is not a choir book. It is very small, useful for one singer, at most two.