He has written more than 100 songs in the pop genre, gaining international recognition as a composer in the 1950s after escaping the dictatorship of Trujillo and traveling to Mexico and Venezuela.
His music has been performed and recorded by many great Latin American singers, especially Celia Cruz, Toña la Negra, Alberto Beltrán, and Vicentico Valdés.
During the Golden Age of Mexican cinema, the great Fernando Fernández immortalized his songs "Carita de Angel" and "Mi Dulce Querer", as orchestrated by Chucho Zarzosa.
[4] Landestoy has focused his interest on the classical music style, a passion he developed at the Conservatorio de la Nación in Santo Domingo, Dominican Republic, where he studied with María Siragusa.
He has composed most of his piano and guitar pieces at the San Anotio Abad Monastery in Humacao, Puerto Rico, where he began a spiritual journey in 1962.