P-G (Guimarães) Arquivo Municipal Alfredo Pimenta C 1423
The cursus is secular but with some monastic influences. Indeed, after the 9th responsory for Matins on the 'Dom. 4 Adventus' it is possible to read (at least) two additional responsories and their verses (see fol. Av). The contents of this fragment have been compared with the texts for the chants in the Breviary without music from Braga ('Breviarium Braccarense') printed by João Gherlinc for Pedro de Barzena, in 1492. The description of the Braga Breviary can be read at http://catalogo.bnportugal.pt/ipac20/ipac.jsp?profile=bn&source=~!bnp&vi.... The full color reproduction of the Braga Breviary can be downloaded at http://purl.pt/22000.
'Dom. 4 Adventus' starts on fol. 75v in the Braga Breviary (see IMAGE 124 in the PDF file) while the texts for the third nocturn are written on fol. 76r. The texts for the chants in the Braga Breviary correspond to the same texts we can read in the fragment, however, the book lacks the extra responsories found after the third responsory of the third nocturn ('Nascetur nobis', Cantus ID 007195) in the fragment. Regarding the chants for 'Nativitas Domini' in the fragment and in the Braga Breviary (see fol. 79r) they do correspond. It is important to highlight that despite the similarity found between the two sources, the comparison has showed that 1) the chants they share have occasionally small textual variants and 2) the two offices compared here have a different selection of readings.