Since its publication nearly eight decades ago, the consensus among scholars about Fábula de Equis y Zeda, by the Spanish poet Gerardo Diego (1896-1987) remains unchanged: Fábula is an enigmatic avant-garde curiosity. It seems to rob the reader of the reason necessary to interpret it, even as it lures him or her ineluctably to the task; nevertheless, the present study makes the case that this work is, in fact, not inaccessible, and that what the anhelante arquitecto, intended with his masterpiece was a creation myth that explains the evolution of music in his day. This monograph unlocks the fullness of the poem´s meaning sourced in music's mythical consciousness and expressed in a poetic idiom that replicates aesthetic concepts and cubist strategies of form embraced by the neoclassical composers Bartok, Falla, Ravel, and Stravinsky.