The Unique Make-Up of the Mariachi Ensemble
In the complete Mariachi group today there are as many as six to eight violins, two trumpets, and a guitar - all standard European instruments. Then there is a high-itched, round-backed guitar called the vihuela, which when strummed in the traditional manner gives the Mariachi its typical rhythmic vitality; a deep-voiced guitar called the guitarró n which serves as the bass of the ensemble; and a Mexican folk harp, which usually doubles the base line, but also ornaments the melody. While these three instruments have European origins, in their present form they are strictly Mexican.
The sound that these instruments combine to make is unique. Like the sarape, which often used widely contrasting colors side by side - green and orange, yellow and blue - the Mariachi used sharply contrasting sounds: the sweet sounds of the violins against the brilliance of the trumpets, and the deep sound of the guitarró n against the crisp, high voice of the vihuela; and the frequent shifting between syncopation and on-beat rhythm. The resulting sound is the heart and soul of Mexico.