Agustin Pio Barrios Ferreyra, a Paraguayan composer and guitarist, is nowadays known as the creator of the Mangorean or Indo-American school of the Guitar. 'The name, Mangoré, was adopted in honor of the great chieftain Mangoré, an important personage of the Paraguayan jungles'.Mangoré used for his works popular folkloristic themes of South America as well as sounds of nature ('the still waters of…