P-G (Guimarães) Arquivo Municipal Alfredo Pimenta N 083
There is only one notated line on this fragment hence, it is not possible to ascertain the use of custos. The neumes are medium size and placed around a red line. The difference between a lozenge and a more or less square punctum is not clearly defined (mainly due to the poor conditions of the parchment). The lozenge is used at different heights: two steps above the line (twice), one step below the line, and on the line. The lozenge is used either isolated or as part of a descending neume pattern.