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 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