[4] He was known for composing a string of hit Mexican songs, including "El Triste", "Al Final", "La Barca" and "El Reloj"[4][5] The Sociedad de Autores y Compositores de México (English: Society of Authors and Composers of Mexico) estimated that "La Barca" and "El Reloj" have been recorded over 1,000 times by other artists like Plácido Domingo, Gualberto Castro, José José, Luis Miguel, Joan Báez and Linda Ronstadt.
[8][10] The duo ended in 1954 with Antonio's death and Roberto formed Los Tres Caballeros (English: The Three Gentlemen) with Chamin Correa and Leonel Gálvez who performed during Mexico's era of romantic music[15] and traveled to Japan, Argentina and the United States.
In 1971, he won the OTI Festival with "Yo no voy a la guerra" (English: I'm not going to the War) and in 1973 for "Quijote".
[4] His home, which suffered a fire in 2006 but was renovated, features a large marble clock in honor of his song, El Reloj, and several statues.
[18][19] In 2010, 75-year old Cantoral died after suffering a heart attack on a flight from Brownsville, Texas, to Ciudad de México.