Charangos

thumb|Video of a charango being played The charango is a small Andean stringed instrument of the lute family, from the Quechua and Aymara populations in the territory of the Altiplano in post-Colonial times, after European stringed instruments were introduced by the Spanish during colonization. The instrument is widespread throughout the Andean regions of Bolivia, Peru, Ecuador, northern Chile and northwestern Argentina, where it is a popular musical instrument that exists in many variant forms.

The ronroco (also spelt ronrroco) is a bass or baritone member of the charango family, with a 44–50-centimetre scale length. It was invented in 1968 by brothers Gonzalo and Wilson Hermosa, of the group Los Kjarkas from Cochabamba, Bolivia, and spread to common usage during the 1980s. In the 1990s and 2000s, it was further popularised by Argentinian musician and composer Gustavo Santaolalla.