The Soul of the Accordion () is a 1935 Argentine tango musical film from the Golden Age of Argentine cinema directed by Mario Soffici, who wrote it with José A. Bugliot. It is considered one of the earliest classics of Argentine cinema.
The film starred Libertad Lamarque, Enrique Serrano and Santiago Arrieta.
A rich countryman sends his son to the city to study. He becomes involved in a romantic relationship with a girl who wants to succeed in singing. The couple go through great sacrifice and renunciation.
The film deals with themes of popular music and radio culture, and introduces the tango song Cambalache, written by Enrique Santos Discépolo.