Don Quijote de la Mancha: Romances y músicas

CMP in anonymous credits like "Anónimo (CMP 106)" refer to the Cancionero Musical de Palacio, a Spanish manuscript of Renaissance music compiled during a time span of around 40 years, from the mid-1470s until the beginning of the 16th century, approximately coinciding with the reign of the Catholic Monarchs, the index numbers denote the specific works compiled within the manuscript;
CMM: Cancionero Musical de Medinaceli, a manuscript containing Spanish music of the Renaissance, copied during the second half of the 16th century;
CMS: Cancionero de Segovia, another manuscript, no info.