Silvio Caldas, 89, favorite Brazilian singer of romantic ballads. Silvio Narciso de Figueiredo Caldas was born in Rio de Janeiro and started singing professionally when he was 6 years old. During his long career, he recorded more than 500 songs. Of all of them, he said, he most wanted to be remembered for his version of “Chao de Estrelas” (“Floor of Stars),” composed by Orestes Barbosa. On Tuesday in Altibaia, Brazil, of respiratory problems.