Mariachi was heavily involved in cultural promotion as a way to create a unified Mexican identity after the end of the Mexican Revolution. One of these efforts was the promotion of mariachi as an international symbol of Mexican identity, first with radio and sound recordings and later with films. Mexico built a nationwide radio broadcasting network in the 1920s such as XEB and XEW, which began broadcasting mariachi music as a media production, rather than as a music for social events. This music was already being modified in part due to the advent of sound recording. For example, most son jaliscense
Mariachi this enterprise, and of Los Camperos in general have inspired many mariachi groups in the United States. In the late 1980s, pop star Linda Ronstadt recorded "Canciones de Mi Padre" and "Más Canciones" with Mariachi Vargas de Tecalitlán and others, which helped promote its popularity among Mexican Americans and to non-Mexican Americans. Some U.S. public schools offer mariachi as part of classes. The first student Mariachi group was begun in 1961 at the University of California, Los Angeles. This prompted the creation of other student organizations in other parts of California and then in Texas, where the first mariachi festival