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
Mariachi of Mexican society in the early 20th century. This would change in the latter half of the 20th century, but the music remains strongly associated with tequila. Mariachi music and musician became more professional with more formal training starting in the late 1940s and early 1950s, principally due to the success of a major Mariachi by the name of Mariachi Vargas. Their appearance in many films, backing many singing stars and their hiring of a formal musician prompted other mariachis to do the same. The group also expanded adding trumpets, violins and even a classical guitar to become a kind