Adapted from the songs of Astor Piazzolla, Morleo has arranged the titles in this collection to be readily accessible to the intermediate or advanced vibraphonist. From a technical standpoint, the titles in this collection require four mallets and also employ contemporary techniques suchas mallet dampening and "dead strokes." From a listener's standpoint, t he rich melodies and harmonic materials of these "tangos" should be readily received! adv. high school/college.