For the last 15 years, San Antonio has been a second home to Mariachi Vargas de Tecalitlán, which was founded in 1897 and is justly considered the world’s greatest mariachi … ever. The annual extravaganza is the main MV concert after a week of workshops and talent competitions. This Saturday’s show, besides featuring the usual showcase of this year’s winners, adds a special treat: the 10-year reunion of Nydia Rojas, the voice of mariachi in Los Angeles, and Texas native Ricardo Castillón. $20-$200, 7:30pm, Municipal Auditorium, 100 Auditorium Circle,
(210) 225-3353, ticketmaster.com, mariachimusic.com.