Voz de la guitarra mía al despertar la mañana quiere cantar su alegría a mi tierra mexicana
The voice of my guitar wants to sing its joy to my Mexican homeland when morning breaks
— “Mexico Lindo y Querido”, traditional mariachi song
SAN ANTONIO, TEXAS — Mateo Lopez tugged at the collar of his shirt and wrenched his neck, as if to free his voice. Then, as violins slashed behind him and guitars rippled before him in a rehearsal room at the Guadalupe Cultural Arts Center, he belted out “La Noche y Tu,” concluding with a flourish that prompted shouts of “Eso! Eso!” Right on!

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