Chopin used a sustained tone or pitches that produced a folk-like sound in his Mazurkas. These pitches are known as drones.
The term "drone," from the French "bourdon," refers to a prolonged tone in music that is typically very low in pitch and serves as a sonorous base for a melody or melodies that sound higher in pitch. The phrase also refers to an instrument's drone string or pipes, such as the three drone pipes on some bagpipes or the drone strings on a hurdy-gurdy. A drone may be continuous or intermittent, and it may replace a single-pitch drone with an interval, typically the fifth.
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