He attended secondary school in Managua (Capital of Nicaragua) and went on to receive an Agricultural Engineering degree in 1955.
Armando became most famous for being the first Nicaraguan guitarist to interpret melodies and regional music in classical style.
Armando's popularity led him to start his own radio show called "Una Guitarra de Noche" or "A Guitar of the Night."
A group of guitarists, created the Octeto Armando Morales Barillas, in his honor, in September 2005.
In September 2006, the 3rd annual "Festival de Mazurcas, Polkas y Jamaquellos" took place in Nicaragua and was dedicated in the honor of Armando Morales Barillas.