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
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.