3-2-1 Trio born in early 2003 in the city of Medellin, Colombia, in order to work with the instrumental trio format typical from the Colombian Andes (Tiple, Guitar and Bandola). 3-2-1 Trio has recorded two albums, entitled them "Así de simple" (It's that simple) and "Por si acaso" (Just in case), which includes unpublished works mostly of the master Jorge Andrés Arbeláez Rendón, with works and composers of Latin American repertoire of different colombian composers.