Nicknamed El Flaco, he was one of the most influential rock musicians of Argentina. He was a singer, guitarist, composer and poet who founded the four rock bands Almendra, Pescado Rabioso, Invisible, Spinetta Jade, and Spinetta y los Socios del Desierto.
He was active as a professional musician beginning in 1967. His band Almendra recorded their self-titled first album in 1969.
He passed away from lung cancer. He authored a published poem called Guitarra negra in 1978.
He was survived by children named Dante, Catarina, Valentino and Vera.
He and Diego Torres are both renown Argentine singers.