The digeridoo is a wind instrument. It was designed by Aboriginal Australians well over a thousand years ago. It is shown on rock-art paintings of that date.
It is rather like the drone pipe found on a bagpipes. It can have a variety of shapes and lengths, each change in shape giving a unique sound. Digeridoos are 1-3m long. The longer digeridoos produce deeper notes.
Digeridoos are made from trunks or large branches of eucalyptus trees found in Central Australia.
Aboriginal digeridoo craftsmen look for live trees that have been hollowed out by termites. The bark is taken off, and the ends trimmed.
The digeridoo is sometimes painted (more often than not for tourist sales) or left undecorated. A rim of beeswax is added to the narrow end to make the mouthpiece.
The digeridoo is played by continuously vibrating the lips to produce the drone, while breathing in with the nose.
Other variations in the digeridoo's sound can be made by adding throat sounds to the drone. Usually these mimic sounds of Australian animals, such as the dingo or the kookaburra.