P-G (Guimarães) Arquivo Municipal Alfredo Pimenta C 192
Inscriptions on the lateral margins of both folios, referring to the contents of the book bound by the fragments: «Libro da Contagem do Anno de 1605».
Inventário dos códices iluminados até 1500, Lisboa: Biblioteca Nacional, 1994-2001, Vol. 2, p. 57.
Large size neumes around a red line. Custos. The axis of the notation is perfectly vertical. Lozenge is used systematically to mark the lower note of the semitone (E or B). The difference between a lozenge and a more or less square punctum is always clearly defined. The lozenge is used either isolated or as part of ascending and descending patterns of two or more notes on one syllable.