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
Los Super Seven self-titled album. Their musical style has changed with each incarnation, blending sounds from Tejano, mariachi, Cuban, Afro-Peruvian, Brazilian, blues, rhythm and blues, country, jazz and rock. The personnel included the members of The Texas Tornados, Los Lobos, Calexico, Ozomatli, and other famed musicians. Los Super Seven Los Super Seven are a predominantly Latin American supergroup which debuted in 1998. According to Allmusic's Stephen Thomas Erlewine, "Los Super Seven isn't a band, per se -- it's a collective, organized by manager Dan Goodman, who comes up with a concept for each of the group's albums and assembles a band to fit."