Mariachi is an ensemble tradition rooted in string instruments and, in many contemporary formations, trumpets, with repertoires of sones, songs, and dance pieces. Regional variants and stage transformations should not be collapsed into a single instrumental formula. Radio, cinema, and records expanded its presence in and beyond Mexico, while local practices continued to develop. This category invites exploration of mariachi recordings by period, place, ensemble, and performance style. Album credits help distinguish traditional groups, orchestrated arrangements, and commercial productions.