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
The Marshall Tucker Band into its sound, most frequently blues, country and jazz. The band has also drawn from boogie, psychedelic, R&B,gospel, folk and rock and roll. According to Allmusic's Jeff Tamarkin, Toy Caldwell's guitar playing style was categorized by "flashy, jazzy llicks; the band has also been noted for extensive jamming. The band's eclectic musical style has predominately been categorized as Southern rock. The band's music has also been categorized as blues rock, country rock, jazz rock and as a "proto-jam band". "Billboard" charts have categorized the band as country, blues and adult contemporary. The band's self-titled debut album was categorized as country