Computer program carried out by the Conference of Bishops of Cuba and the RIIAL-CUBA with the aim of bringing to the digital version the book CUBA CANTA SU FE, designed for the Catholic church in Cuba, where all parishioners can run on the android mobile this application and consult all the songs that are collected in the book and the basic prayers of Christians. Its secondary objective is to reduce the volume of the android mobile during the stay inside the church and once the program closes the volume is restored.