The music of Chad includes a number of instruments such as the ''kinde'', a type of bow harp; the ''kakaki'', a long tin horn; and the ''hu hu'', a stringed instrument that uses calabashes as loudspeakers. Other instruments and their combinations are more linked to specific ethnic groups: the Sara prefer whistles, balafones, harps and ''kodjo'' drums; and the Kanembu combine the sounds of drums with those of flute-like instruments.