Cirilo R. Zayas belonged to a group of educated people, artists, journalists, professors, priests and trade unionists.
Was victim of the political fanatics of other times;[clarification needed] "his mother, along with other brave women, by lying in the railroads, defied a convoy that transported men and weapons, in one of the many syndicate strikes of political connotation in Paraguay", explains a written preserved by Autores Paraguayos Asociados – APA -(Paraguayan Authors Association).
In composing "Felicidades" (Congratulations), he gave Paraguayan folkmusic a song that describes the sentiment of profound caring and respect for someone having a birthday or anniversary, giving them a message of good augurs with the sounds of a polka.
He wrote lyrics for great music composers such as Chinita de Nicola, Porfirio Báez, Gerardo Arroyo, Vicente Orrego Chono Duarte, Alejandro Villamayor, Lorenzo Alvarez and others.
He was a columnist for the newspaper Ultima Hora and has published more than 150 articles that are compiled in the book “Parrilla, Luna y Folklore” (Asunción 1995).