Common steps and sub-activities
Listening to didgeridoos
Perhaps the best known drone instrument, is the didgeridoo.
For an example http://www.youtube.com/watch?v=dFGvNxBqYFI&feature=related
The didgeridoo is a wind instrument developed by Indigenous Australians of northern Australia. It is still in widespread usage today both in Australia and around the world. A modern didgeridoo is usually cylindrical and can measure anywhere from 1 to 3 m (3 to 10 ft) long. It is sometimes described as a natural "drone pipe".
A 10 foot plus drone pipe played with the pulsed blowing used by aborigines is an ideal mechanism for inducing spiritual experience. It will act like an organ pipe having a number of complex resonant frequencies, some of which will be audible, but quite a number of which will not be audible and thus infrasound. I suspect the tuning of such instruments is a skill but obtaining the exact experience for each person may well be largely achieved via trial and error.
The didgeridoo is believed to be the world's oldest wind instrument. Archaeological studies of rock art in Northern Australia suggest that the Aboriginal people of the Kakadu region of the Northern Territory have been using the didgeridoo for at least 1,500 years. A clear rock painting in Ginga Wardelirrhmeng, on the northern edge of the Arnhem Land plateau shows a didgeridoo player and two songmen participating in an Ubarr Ceremony.
The word "Didgeridoo" is of Western invention. There are numerous names for this instrument among the Aboriginal people of northern Australia, with yirdaki one of the better known words.
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