 In the opera, Neruda's Act 1 aria "Desnuda" uses the text from "Mañana XXVII" in "Cien Sonetos de Amor" which was first published in 1959.Like all of Catán's previous operas, the libretto was in Spanish.In a 2008 essay published in "Revista de Musicología", he wrote of his dream to establish a strong tradition of Spanish-language opera, which was still lacking in both Spain and Latin America.