The brothers Samy and Sandra Sandoval is a musical duo of Panama as part of a range of Panamanian artists specialized in traditional music of the country. Also known as "Los Patrones de la Cumbia."
One of their main concepts was " Evolucion",recorded on CD or DVD . They have also published a book entitled "Samy and Sandra history. " They have given concerts in the United States, Dominican Republic, Belgium, the Netherlands, among others, and came to perform a function in front of Prince Rainier of Monaco before his death.