Mariachi artists such as Pedro Fernández, Ana Gabriel, and American born mariachi singer Pepe Aguilar and more. The educational movement is controversial with some trained in the traditional manner, who are skeptical about these programs and their potential to change the tradition. The changes, especially standardization of publishing, are slowing impacting mariachi in Mexico. One difficulty of arranging mariachi pieces is that the son jaliscense is based on alternates between and time. Much of the published mariachi music is meant for people already familiar with the music to serve as guides, not to novices. On the other hand, many schools have
El Mariachi were simply condoms filled with fake blood and fixed over weightlifting belts. Rodriguez also noted the use of improvisation. The tortoise that crawls in front of the Mariachi was not planned, but was kept in as a good idea. Similarly, there is a scene in which the Mariachi buys a coconut, but Rodriguez forgot to show him paying for the fruit; instead of driving back to the place to shoot additional scenes, Rodriguez decided to build in a voice-over in which the Mariachi asserts that the coconuts were for free. Improvisation was also useful to cover up continuity mistakes: at