Bagpipes are a woodwind instrument using enclosed reeds fed from a constant reservoir of air in the form of a bag. The Scottish Great Highland bagpipes are the best known in the Anglophone world; however, bagpipes have been played for a millennium or more throughout large parts of Europe, northern Africa, and western Asia, including Turkey, the Caucasus, and around the Persian Gulf. The term bagpipe is equally correct in the singular or plural, though pipers usually refer to the bagpipes as “the pipes”, “a set of pipes” or “a stand of pipes”.