The guitarrón is a large, acoustic string instrument commonly used in traditional Mexican music, particularly in mariachi ensembles. It has a deep body and a wide neck, typically featuring six strings that are played with a pick. The instrument provides a rich, resonant bass sound that supports the melody played by other instruments. Originating in the 19th century, the guitarrón is often made from wood and can vary in size and shape. It is essential for creating the rhythmic foundation in mariachi music, complementing instruments like the violin and trumpet. Its unique sound contributes to the vibrant and festive atmosphere of Mexican celebrations.