Those who purchased tickets to see A.B. Quintanilla headline at Tejano Explosion, the popular San Antonio Fiesta concert series, got more than they expected. It turned out to be a 2-for-1 deal — buy a ticket to the concert and get a free lecture about audience participation. A.B. Quintanilla Y Los Kumbia Kings All Starz performed downtown Saturday night as the final act of the weeklong concert series. But Quintanilla, brother of Tejano icon Selena and the band’s frontman, quickly told the... Read this story