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 Divas de Cindy Shea a high-schooler, she was a victim of pranks and was told to give up trumpet because it was "too macho". In the early 1990s, Shea obtained a professional gig as trumpet player for an all-female mariachi band called Mariachi Las Alondras. When that band broke up in 1999, she formed another, calling the group Mariachi Divas. A big break for the new group came in September 2003, when they were discovered by Stan Freese, talent booking director for Disney Resorts, and became the official mariachi band of Disneyland Resort. They quickly became a fixture at Disney's California Adventure theme park