P-G (Guimarães) Arquivo Municipal Alfredo Pimenta P 714
The liturgical feast 'Octava Martini' of the chants on fol. A is written on fol. Ar (see the bottom of the left column). Chants on fol. B are usually sung in liturgical feasts related to St Martin in other manuscripts. Although it exists the possibility that these chants on fol. B were also sung for 'Octava Martini' or even for 'Martini', the liturgical feasts of fol. B were left 'indeterminate' because there is not exact correspondence between the liturgical order of the chants found on the fragment and those found in other sources (either for Octava Martini or other related liturgical feasts).
Several later-hand inscriptions on Av, Br and Bv.
Large size neumes. The axis of the notation is vertical. Custodes absent. The lozenge is used consistently either in isolation or as part of compound neumes. The difference between a lozenge and a more or less square punctum is clearly defined.