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 of orchestra, keeping the traditional son/mariachi base while integrating new musical ideas and styles. One other innovation, in contrast to the machismo of the style were the first female mariachi performers, Lola Beltrán and Lucha Villa. One night Mariachi Vargas put Beltrán on stage when she was a teenager. Her versions of “Cucurrucucu Paloma” and “Tres Dias” are now considered classics. Many of the traditional sounds of Cocula were lost as mariachi groups incorporated other musical styles that were popular on the radio. New influences have come into the tradition from the Mexican American community in the United States. In