The title of the song is a Spanish horse-racing phrase meaning "by a head", which refers to a horse winning (or losing) a race narrowly–by just the length of its head. The lyrics speak of a compulsive horse-track gambler who compares his addiction for horse racing with his attraction to women.[2]
Le Pera and Gardel died together in an aeroplane crash in Medellín, Colombia, on June 24, 1935.[2] After the 70-year period required by Argentine law[5] had elapsed, as of January 1, 2006, “Por una cabeza”—its music and lyrics—as well as all the joint works by both authors, entered the public domain.[6]
↑"Por una Cabeza". Todo Tango (in Spanish). Retrieved July 29, 2014.
12Clavell, Mario (1996). "Biografía". Los Mejores Tangos de Carlos Gardel. California: Alfred Publ. Van Nuys.
↑Schickler, David (2013). The Dark Path. Riverhead Books. ISBN978-1594486456. ...an instrumental recording of Por una Cabeza used in the films Scent of a Woman and True Lies. The original version of the song, a hit from the 1930s by Carlos Gardel and Alfredo La Pera...