From a young age, La Perla, Callao-born guitarist Oswaldo "Mita" Barreto was a fan of Cuban artists like Celina y Reutilio and Los Compadres, whose records were a staple in the port city homes. He soon learned to distinguish the sound of the Cuban tres on these records (the chordophone from rural areas of Cuba). At the age of 18, he had already mastered the instrument, although he had never seen a Cuban musician play one live until that point. At the beginning of 1969 (according to the record company's archives), his fame led him to record his first 45 RPM singles for the MAG label, which were compiled in an LP by the end of the year entitled "Arecibo", after a song dedicated to the Puerto Rican city of the same name. For these recordings he was accompanied by a group of musician friends, all linked to the tropical music scene in Callao, Peru. The album opens with two Cuban guarachas from the 1950s: 'Mango mangüé' by El Gran Fellove, whose compositions were popularized across the Americas thanks to the voice of Celia Cruz and the Sonora Matancera; and 'El yoyo' by Antonio Sánchez Reyes, another international hit performed by Cortijo y su Combo. Both songs were recorded by Mita in May 1969.