He used to escape from his college classes to go visit the Biblioteca Nacional del Perú (the National Library of Peru) and submerge himself in books.

In 1932, with Calonge y Castillo, he helped form the trio “Sudamericano”, but it quickly disintegrated after a tour in Chile.

In 1936, Miró wrote the waltz “Se va la Paloma” (“The Dove Goes”) which with the music of Filomeno Ormeño paid homage the traditional Procession of the Our Lady of Mount Carmel from the High Neighborhoods of Lima.

Later in Los Angeles, California, he received permission to film a movie showing the feelings of the Latin-Americans that lived in the USA on their returned native land.

In 1941, Jesús Vásquez performed this song for the first time, and it was called “Todos Vuelven” (“Everybody Returns”), and as he started to sing the first verses of the song, he knew that Miró had written a glorious[peacock prose] new page as a native song... “Todos vuelven a la tierra en que nacieron, / al embrujo incomparable de su sol, / todos vuelven al rincón donde vivieron, / donde acaso floreció más de un amor…” (“Everyone returns to the land where they were born, / to a bewitching incomparable of its sun, / everyone returns to the corner where they lived, / where perhaps more than one love had flourished…”).