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
Corps style band music. In modern times the show band style still is still fairly popular around the country. Although, one may observe a patterns in motion movement during the course of a show, it is generally not utilized for an entire performance. Even within the show band style, there are significant variations. There tends to be a style more geared towards African American traditions, and can be observed in bands from schools such as Grambling State University, Texas Southern University, or the fictitious college from the film "Drumline". This variation features more standing time, while band members dance and entertain the spectators.