The Uilleann pipes are a type of traditional Irish bagpipe known for their unique sound and complex playing technique. Unlike other bagpipes, they are played while seated and use a bellows strapped to the player's arm to supply air, allowing for greater control over the volume and tone. These instruments typically consist of a chanter, drones, and regulators, which provide harmony. The Uilleann pipes are often associated with Irish folk music and are celebrated for their expressive capabilities, making them a favorite among musicians and audiences alike.