Colman was born in the village of Tebicuarymí, a town close to Caballero, Paraguarí Department, Paraguay. His father died when he was very young and since then he had to perform various activities to make sustainable life for his family, whose head was his mother.
At the time of his birth, Tebicuarymí belonged to the Guairá Department. He died in Asuncion, capital of Paraguay on 14 July 1983. He served as a model to affirm their desire to become singers and songwriters.
In 1952, he formed a duo that lead to success and significance that their teachers knew, the duo Vargas-Saldivar, composed by him and also interpreter and composer Andrés Cuenca Saldivar.
The last time was recorded in the year 1980 " said the artist. Indeed, the ultimate success and dedication nationally and internationally, would arrive with the characteristic composition and known as interpreted by the duo Vargas-Saldivar "Vapor Cue", which lyrics describe the deeds of the Paraguayan naval fleet during the Paraguayan War (also known as the War of the Triple Alliance).
This theme was recorded in 1958 for the label "Columbia" Argentina, with the special participation in the interpretation of Harp, another enshrined in this instrument the artist Lorenzo Leguizamón. In the 70"s, the Duo-Vargas Saldivar was presented at numerous venues of Latin American countries in international tours, performing.
Had the opportunity to bring their art to many cities in Argentina, Bolivia, Brazil, Uruguay and other countries of the South America.
In 1972, they sang for “El Mundo de Buenos Aires” a very important radio program In 1979, Paraguayan residents in the United States organized a Historical and multitudinous presentation according to a letter preserved in APA.
