 He relates that the song was played on the orders of General Antonio López de Santa Anna to the Texans holed up in the Alamo, to signify that no quarter would be given to them.The tune was used in Wayne's film, "The Alamo" (1960).Composer Ennio Morricone recalled that director Sergio Leone asked him to write "Dimitri Tiomkin music" for "A Fistful of Dollars".