At the moment five of the books by Miguel Angel González Aguado that are available on internet platforms:
-The book: La Cascada, lección de música para los niños that is a method to teach music to small children in a fun way.
Miguel Angel González Aguado is the author of many more Works. In this website you can also see the information about the places where you can buy his records "Canción de Invierno", "Composiciones Secretas", Piensa que lo lograrás which is the single of his third album Fuerza de Voluntad and the single Paseando por Madrid. All these records are instrumental and entirely composed by him. Most of the times you can listen to some parts like a sample in these stores.