[3] Starting at 5 years old, Sílvio began to actively participate in Rio's Carnaval, becoming a member of the Família Ideal Bloco.

[4] After returning to Rio, he performed a serenade during which Antonio Gomes, artistic director of Rádio Ipanema, was present.

[4] In 1929, Caldas went to Rádio Sociedade and performed for 20 mil-réis per night, becoming a part of a line-up that also included Gastão Formenti, Francisco Alves, Patrício Teixeira, and Rogério Guimarães.

[4] Caldas recorded some albums with the German production company Brunswick, which initially went to Brazil to open factories for snooker accessories.

Overall, no other artist from the label (which included names such as Gastão, Carmen Miranda, and Bando da Lua) moved away from the brand and closed its doors in 1931.

[5] A month after 'O Brasil do Amor, Caldas participated again in another show, É do Balacobaco, another creation of Barroso and Marques, cowritten by Vitor Pujol.

In 1933, the record "Eu Vou para o Maranhão" was released, along with "Chorei" by André Filho, "Mimi" by Uriel Lourival, and the self-composed "Na Aldeia", in partnership with Carusinho e De Chocolat.

[10] Their best year came in 1937, when they composed 8 songs, among them "Quase Que Eu Disse", "Arranha-Céu", and their biggest hit "Chão de Estrelas".

[12] In 1950, he moved to São Paulo (specifically to the Vila Madalena neighborhood), where he signed an exclusive contract with Rádio Excelsior.

[13] From the 1960s onward, Caldas soon had to confront the rise of Bossa Nova, the Jovem Guarda, and rock and roll, which took up considerable radio space.