A pipe band is a musical ensemble consisting of pipers and drummers. The term used by military pipe bands, pipes and drums, is also common.
The most common form of pipe band, the Scottish/Irish pipe band, consists of a section of pipers playing the great highland bagpipe (In Ireland known as the great Irish warpipes), a section of snare drummers (often referred to as 'side drummers'), several tenor drummers and usually one, though occasionally two, bass drummers. The entire drum section is known collectively as the drum corps. The tenor drummers and bass drummer are referred to collectively as the 'bass section' (or in North America as the 'midsection'). The band follows the direction of the pipe major; when on parade the band may be led by a drum major, who directs the band with a mace. Standard instrumentation for a pipe band involves 6 to 25 pipers, 3 to 10 side drummers, 1 to 6 tenor drummers and 1 bass drummer. Occasionally this instrumentation is augmented to include additional instruments (such as additional percussion instruments or keyboard instruments), but this is typically done only in concert settings.
Pipe bands are a long-standing tradition in other areas with Celtic roots, such as the regions of Galicia, Asturias and Cantabria in Northern Spain and Brittany in Western France, as well as other regions with Celtic influence in other parts of Europe. It's also a long-standing tradition in the British Commonwealth of Nations countries and former British colonies such as the United States, Canada, Australia, New Zealand, South Africa, India, Malaysia, Singapore, Hong Kong, Brunei, Sri Lanka and Pakistan. Pipe bands have also been established in countries with few Scottish or Celtic connections such as Thailand, Colombia, Mexico, Brazil, Chile, Uruguay, and Argentina.