Tunai was born into a musical family, of which João Bosco is the most famous representative. In his hometown, he started to play in the dance band Jovem Brasa 5. In 1978, he moved to Rio de Janeiro, where met Sérgio Natureza and immediately began to pen songs with him. His first solo album as an interpreter was Todos os Tons, released in 1981.
One of the most important vehicles for national divulgation of popular songs in Brazil are soap operas, which are extremely popular. Selection of songs to be inserted in their soundtracks is very rigorous, and if it serves as a measure of success and of the composer's ability to connect with a broad and diverse audience, it must be noted that Tunai had many songs included in top soap operas. Some of those songs include "Sintonia" (Tititi, TV Globo), "Sobrou Pra Mim" (Fera Radical, TV Globo), "Meu Amor" (Despedida de Solteiro, TV Globo), "Apaixonada" (Pantanal, TV Manchete), "Eternamente" (Torre de Babel, TV Globo), and "Frisson" (Suave Veneno, TV Globo). ~ Alvaro Neder, Rovi