DRONE, in music, the bass pipe or pipes of instruments of the bagpipe type, having no lateral holes and therefore giving out the same note without intermission as long as there is wind in the bag, thus forming a continuous pedal, or drone bass. The drone pipe has, instead of a mouthpiece, a socket fitted with a beating reed, and inserted into a stock or short pipe immovably fixed in an aperture of the bag. There are allusions in the Greek classics which point to the existence of a pipe with a drone, either of the arghool or the bagpipe type.