O magnum mysterium (fols. 63v-64r)

IMSLP list two Works by Pedro de Christo titled O magnum mysterium.
This Work they refer to as O magnum mysterium II.
One distinguishing feature is that the lyrics of O magnum mysterium II do not feature repetitions of the phrase "Beata virgo".
Another is the source of the work which IMSLP gives as P-Cug MM 36 (fols. 63v-64r).
It is from these folio numbers that the disambiguation has been created.

(The other work with the same name by de Christo does feature repetitions of "Beata virgo" and IMSLP gives its primary source as P-Cug MM 36 (fols. 24v-25r).
Note the different folio numbers.)

Currently (2018/02) CPDL has two onsite scores for this Work, one by Marble and the other by Mendes, but also link to P-Cug MM 36 (fols. 24v-25r) on IMSLP without noting the possibility of confusion.