Miles Davis and the brilliant jazz composer/arranger Gil Evans found each other in the late 1940s, and remained friends and collaborators for the rest of their lives. Unfortunately, that collaboration was sporadic and occasional, except for one glorious period - 1957 through 1960 - when Davis and Evans produced three masterpieces: Miles Ahead, Porgy and Bess, and Sketches of Spain. Sketches was inspired by Miles' love of Joaquin Rodrigo's Concierto de Aranjuez for guitar and orchestra, and by the Spanish volume of the World Library of Folk and Primitive Music, a massive anthology of the world's folk music compiled by Alan Lomax. The Adagio movement of the guitar concerto is recomposed, not "jazzed up," and it works beautifully. Davis' playing on "Saeta," Evans' recreation of a religious procession with a brass band, is some of his most moving work on records.
I have been listening to this music for about 40 years, and it floors me every time. I just found a nice mono ("regular," the cover says) Columbia 6-eye copy. I'm enjoying discovering Sketches of Spain all over again.