"¡Ay, ay, ay!", subtitled "Reminiscencias cuyanas", is a song composed in 1913 by the Chilean-born composer, pianist, singer and publisher Osmán Pérez Freire. Freire (born in Santiago in 1880), who emigrated to Mendoza, Argentina in c.1886-1890, was a figure of some note in the evolution of Tango. This song, however, known worldwide, is his most famous composition, and has never fallen out of fash... Wikipedia