Arsenio Rodríguez (born Ignacio Arsenio Travieso Scull; 31 August 1911 – 30 December 1970) was a Cuban musician, composer and bandleader. He played the tres, as well as the tumbadora, and he specialized in son, rumba and other Afro-Cuban music styles. In the 1940s and 1950s Rodríguez established the conjunto format and contributed to the development of the son montuno, the basic template of modern-day salsa. He claimed to be the true creator of the mambo and was an important as well as a prolific composer who wrote nearly two hundred songs.