||Snow 1977, no. 191 bis: "Work previously published pseudonymously (Hisan, 1935) has been deftly absorbed into this account of the early years of Puerto de Santa María. With 24 compositions dealing with this city in the CSM, Alfonso's favour is clearly shown: no other city appears as often. Adduced in the commentary are CSM 328, 383, 371, 379, 398, 364, 358 and 367. Pages 20-2 review the city's connection with the Military Order of Santa María de España founded by Alfonso. The author is careful to separate history from aesthetic elaboration and this enhances the value of his contribution."