First recording album, “Un legado para la historia” by Luis Sanz recorded when he was nine years old with his ensemble “Legado Musical”. Luis dedicated this project to one of the remarkable figures in the Puerto Rican cuatro history to “El maestro” Ladislao “Ladí” Martínez. The members of the ensemble were Luis on the first cuatro; Juan González, on the second cuatro who played cuatro with Ladí in the United States; Apolo Ocasio on the guitar; and Luis Sanz, father, on the güiro.