The didgeridoo (also spelled didgeridu) is a hollow tube-shaped wind instrument. The indigenous Australians developed it 1,500 years ago. It is thought to be one of the oldest instruments played by humans.
Originally played for Australian Aboriginal dances and ceremonies, now it has become Westernized and played by many around the world.
If you want to buy a didgeridoo or learn how to play one I recommend getting it from the source, Australia. Here is a company I like. Didgeridoo’s Down Under They also have instructions to play.
Xavier Rudd plays it along with Andy Graham.
My favorite is Jono Callow.