P-AZsc (Azurara) Santa Casa da Misericórdia, Arquivo Frag. MAZ-MM6
Chants for the 2nd and 3rd Sunday in Advent. Readings for the ferial days in its octave. Chants and readings for Saturday in the Advent Ember week.
«6m» in black ink [3r - bottom margin]
Illegible scribbles [3v - bottom margin]
«1575 / Livro do ano de / 1575» [6r - over the musical notation]