Buenos Aires: Editorial Columba, 1959. Paperback. 47p., Text in Spanish. slender softbound in 8x5 inch decorated frenchfold wraps, spine and back cover sunned, slight signs of handling and age, a very good copy that is inscribed on title page by the author to American jazz critic Ralph Gleason. Also find, laid in, a hand-typed note in English from author to critic, listing book's contents and asking for a review.