Mariachi songs were longer than the standard three-and-a-half minutes of the then-standard 78 rpm record, forcing the shortening of tunes. Around the same time, the popularity of jazz and Cuban music introduced the trumpet into mariachi, pushing the violins into second place and in some cases, replacing the harp. The most prized of the mariachis remained those from the state of Jalisco, particularly the areas of Cocula and Tecalitlán. They represented Mexico to the people during the Independence Day celebrations in Mexico City in 1933 as well as during Lázaro Cárdenas' election campaign in 1936. The charro tradition was strong in
Mariachi rajes!" and "¡Así se quiere en Jalisco!" The main characters used his ability to sing mariachi as a way to show strength, virility, and aesthetic beauty. Its use in film also made the music popular and a symbol of ethnic pride for Mexican Americans in the United States. Its use in film also promoted a negative perception of mariachi music. The films associated the charros and mariachi music with machismo, womanizing and drinking, especially of tequila. The reason that the movies did this was that mariachi music was associated with bars and the lower classes in a number of segments