The bagpipe produces sound when air is forced from the bag
over the reeds. Melodies are played on the chanter which
has fingerholes like a flute. The additional tubes are the drone pipes,
which sustain the pitch as an accompaniment to the melody.The bag is usually made of sheepskin
though rubber is sometimes used.
The bag-hornpipe was a primitive type of bagpipe without a drone.
Hear a bagpipe