Word Origin For years, authorities believed the word mariachi (or its variant, mariache) was an indigenous Mexican word, but recent evidence points to a mixed Spanish and indigenous (mestizo) origin. The earliest known written examples of the word date from the early 1800s, where it is found as a place name.

The classical guitar serves as the rhythmic and harmonic foundation of mariachi music. Its deep, warm tones provide a rich backdrop against which the melody instruments play. In a mariachi group, the guitar's role is multifaceted, offering chordal support and rhythmic structure.