||Snow 1977, no. 128: "Leans heavily on Aubry (1906 and 1908) and expands very little on the essay listed above [Trend, Alfonso the Sage..., 1926]. Ready acceptance of an Arabic imprint on the poetic forms but not on the music of the CSM. On pp. 201-8 T. prints some musical versions, after Aubry, but they are better consulted, by the musicologist, in the original place."