Mariachi giving them modified shapes and tunings. In addition to instruments, the Spanish introduced the concept of musical groups—which, in the colonial period, generally consisted of two violins, a harp, and various guitars. This grouping gave rise to a number of folk musical styles in Mexico. One of these folk musical styles was the "son". This music featured string instruments. "Son" music divided into various regional varieties—the variety popular in the Jalisco area was called "son jalisciense", whose best known song, also referred to as "the mariachi national anthem," is “La Negra.” Modern mariachi music developed from this "son" style, with
Alternative country The Carter Family, often cited as major influences. Another major influence was country rock, the result of fusing country music with a rock & roll sound. The artist most commonly thought to have originated country rock is Gram Parsons (who referred to his sound as "Cosmic American Music"), although Michael Nesmith, Steve Earle and Gene Clark are frequently identified as important innovators. The third factor was punk rock, which supplied an energy and DIY attitude. Attempts to combine punk and country had been pioneered by Nashville's Jason and the Scorchers, and in the 1980s Southern Californian cowpunk scene with bands