Mariachi was heavily involved in cultural promotion as a way to create a unified Mexican identity after the end of the Mexican Revolution. One of these efforts was the promotion of mariachi as an international symbol of Mexican identity, first with radio and sound recordings and later with films. Mexico built a nationwide radio broadcasting network in the 1920s such as XEB and XEW, which began broadcasting mariachi music as a media production, rather than as a music for social events. This music was already being modified in part due to the advent of sound recording. For example, most son jaliscense
Country dance in Circular, Half Circular, Serpentine, Angular, Straight Lines, etc. etc. drawn out into different Lengths, adapted to the various Strains of Country Dance Music." . Again, the possible figures are limited only by the imagination of the choreographer. Examples of some of the figures are provided in the Glossary of country dance terms. The music most commonly associated with country dancing is folk/country/traditional/historical music, however modern bands are experimenting with countless other genres. While some dances may have originated on village greens, the vast majority were, and still are, written by Dancing Masters and choreographers. Each dance consists of a