Some models may have several pipes with keys which permit the playing of simple chords. In Scotland, Ireland and though to a lesser degree in Brittany, this repertoire is rich, complex and clearly defined on more than one level. In Galicia it is a more popular instrument with less ample possibilities and functions. Also included along with the instrumental pieces are two vocal numbers, one from Brittany and the other from Scotland, which illustrate the existing rapport in both countries between instrumental bagpipe and vocal music. The six accompanying pipes are all held together in one large stock and lie in a bunch across the right thigh.
Air is provided by a bellows.
Intonation chanter and drone 1. In this way the continuous sound of the chanter and the three drones can produce a simple chord which can accompany a reel or jig. The keys are pressed with the inside of the right wrist. This extraordinary instrument dates back in its present form to the 18th century. The success of the Union pipes played a decisive role in the eventual disappearance of other traditional instruments in Ireland, particularly the Irish harp.