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The yidaki, sometimes pronounced yir-da-kee, is a the traditional name for didgeridoo crafted in NE Arnham Land which is located in the upper part of Australia. This yidaki has been crafted by Djalu Gurruwiwi, a highly gifted maker from the region available fin the Key of D# with and overtone toot of E.
Check out more clips and info on didgeridoo playing at http://www.laoutback.com