Claim: Rubén Fuentes (born 15 February 1926) is a Mexican classical violinist and composer, who is best known for his contributions to Linda Ronstadt's classic "Canciones de Mi Padre" album, which is the singer's first album of  Mexican traditional Mariachi music.
Evidence: Rubén Fuentes (born 15 February 1926) is a Mexican classical violinist and composer, who is best known for his contributions to mariachi music. He is best known for his work on Linda Ronstadt's classic, Grammy award-winning, multi-platinum Canciones de Mi Padre album. Canciones De Mi Padre (Spanish for "Songs of My Father", or "My Father's Songs") is American singer Linda Ronstadt's first album of Mexican traditional Mariachi music.