||Snow 1977, no. 106: "An introd. to modern versions of the music of CSM 1, 30, 68, 118, 124, 174, 184, 242, 322, and 391, reconstructed by the author and harmonized by Tomás Bretón Hernández. Although Arabic music is not recorded in moderm notation until the sixteenth century, Ribera argues that Arabic melodies that Alfonso heard in his youth must have been the inspiration of the music of the Cantigas. Even more extraordinary is the further claim that Arabic music was also the source of the regional music of Aragon, Asturias, and, ultimately, of medieval music throughout Europe. See also Riaño (1887)."