EMILE BOSCH HE looks every bit the traditional Lesotho sheep herder, wrapped in a blanket to ward off the mountain kingdom's cold and swinging an ornate walking stick while he sings in the local Sesotho language. But since establishing himself in 2015, singer and rapper Teboho Mochaoa has gone beyond his home country's folk "Famo" music - with its trademark accordion and single drum - to produce an eclectic sound mixing electronic dance music, dub reggae and rap. That has enabled him to captivate audiences outside his native Lesotho, including in venues in Paris, Oslo, and Cape Town. He has…