In music, a drone is a harmonic or monophonic effect or accompaniment where a note or chord is continuously sounded throughout most or all of a piece. A drone may also be any part of a musical instrument used to produce this effect; an archaic term for this is burden (bourdon or burdon) such as a "drone [pipe] of a bagpipe", the pedal point in an organ, or the lowest course of a lute. Α burden is also part of a song that is repeated at the end of each stanza, such as the chorus or refrain. Musical effect "Of all harmonic devices, it [a drone] is not only the simplest, but probably also the most fertile." A drone effect can be achieved through a sustained sound or through repetition of a note. It most often establishes a tonality upon which the rest of the piece is built. A drone can be instrumental, vocal or both. Drone (both instrumental and vocal) can be placed in different ranges of the polyphonic texture: in the lowest part, in the highest part, or in the middle. The drone is most often placed upon the tonic or dominant (play "Row, Row, Row Your Boat" with a drone on the , on the , or on . Compare with .). A drone on the same pitch as a melodic note tends to both hide that note and to bring attention to it by increasing its importance. A drone differs from a pedal tone or point in degree or quality. A pedal point may be a form of nonchord tone and thus required to resolve unlike a drone, or a pedal point may simply be considered a shorter drone, a drone being a longer pedal point. History and distribution The systematic use of drones originated in instrumental music of ancient Southwest Asia, and spread north and west to Europe and south to Africa. It is used in Indian music and is played with the tanpura (or tambura) and other Indian drone instruments like the ottu, the ektar, the dotara (or dotar; dutar in Persian Central Asia), the surpeti, the surmandal (or swarmandal) and the shankh (conch shell). Most of the types of bagpipes that exist worldwide have up to three drones, making this one of the first instruments that comes to mind when speaking of drone music. In America, most forms of the African-influenced banjo contain