Get your hands on the Bitches Brew 2 Vinyl LP, the double album by American jazz musician, composer, and bandleader Miles Davis.

The concept of a double album had become fashionable for rock music. Miles Davis made it his own, creating pieces over 20 minutes long that were built on a few fragments he offered to the musicians in his new quintet. Joining this group were several invited artists whose role was to enlarge the rhythm section and to help rein in the members of the ensemble who were known to venture toward the edge of chaos during their concerts.

Cutting extensively, Teo Macero tried to create some order in the tapes, eliminating, editing, and elaborating refrains and improvised ritornellos from a few notes repeated in the introduction, in the interlude, or in the course of a long solo; elsewhere he injected his own electronic effects.

From then on, the monochromatic blue night that had dominated In A Silent Way was infused with flushes, flames, and blazes—but they were under control. The title “Spanish Key” indicated that Miles had returned again to the modal adventure exactly where he had left it ten years earlier in “Flamenco Sketches” and “Teo!”