An edition for performers and scholars of the "Cantigas de Loor", a sub-corpus of the "Cantigas of Santa Maria", a vast collection of over 400 songs with texts in the Galician language, ascribed to King Alfonso the Wise (reigned 1252-84). The introduction is in English with parallel Spanish. There is also a chapter on the pronumciation of medieval Galician to aid performers as well as offering a contemporary understanding of the late 13th-century mensural notation.