With Un Fuego de Sangre Pura (A Fire of Pure Blood), the roots of the cumbia thrive in the music of Los Gaiteros de San Jacinto from Colombia’s violence-torn Caribbean hinterlands. The sounds of long-tubed gaita flutes, unique drums, and maraca stoke the fire of the cumbia and of other regional dances--the fast-paced puya and porro, the cadential gaita corrida, and the bullerengue.