There were not enough trained musicians in the country .
Visoni created Guatemala 's first music conservatory , the School of Substitutes ( known today as Military School of Music Maestro Rafael Alvarez Ovalle ) .
Since there were not enough trained musicians in the country , Visoni created Guatemala 's first music conservatory , the School of Substitutes ( known today as Military School of Music Maestro Rafael Alvarez Ovalle ) .