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
Women in Latin music (bars), and their partners destroyed their instruments. Other all-female bands tried unsuccessfully to be pioneers. Four of the six-member Mariachi Estrella de Topeka and 110 others were killed in the 1981 Hyatt Regency walkway collapse. Rebecca Gonzales, who later joined the Los Angeles Uclatlan band, was the first female mariachi violinist. According to Gonzales, the other members of Uclatlan found it "bizarre" that a woman was playing with them and it took the group about a month to accept her. Gonzales was the first female mariachi musician to break through professionally. A role model for female mariachi hopefuls, she was