Generally: a rubber band around a reed (chanter or drone) used to adjust the pitch and/or "open-ness" of a reed. Occasionally, on cane drone reeds, bridles are made by hand using waxed hemp. Related Articles: The Thirteen Steps, Part IIThe 4 Simple Steps to an Easy BagpipeChanter Tuning Brain Game #1Related Terms:Term: ChanterTerm: Drone ReedTerm: DroneTerm: PitchTerm: Hemp