The didjeridoo/didjeridu/didgeridoo or Yidaki is an Aboriginal wind musical instrument traditionally played in the tropical north of Australia. It is generally a trunk of a eucalyptus tree that has been eaten out by termites. The trunk is cut down, the bark scraped off, the inside cleaned out and shaped and a mouthpiece of beeswax may be applied. Often the didjeridoo is then painted with clan or family designs. It is played w mostly with a loose lip buzz and circular breathing. A single didjeridoo is traditionally played to accompany a songman and provide rhythm for the dancers in a ceremony commonly called a corroboree. Aboriginal names include: Yidaki, Yiraki, Yiraga, Ihambilbilg, Magu, Kanbi.

Links:
Garma Cultural Festival Yidaki Statement
The Didjeridoo Workshop
Yidumduma Bill Harney
Australian Aboriginal Art and Culture Centre, Alice Springs.