Thanks for sharing! Interesting role it plays as both a wind and rhythm section instrument. Quite a few musical instruments were used for community and martial communications in the past, and even today. The
ultra-wide tonal and rhythmic "vocabulary" of the instrument displayed by this artist had me thinking it must have had a "practical" use. A quick Google search...
www.newworldencyclopedia.org
"The didgeridoo is sometimes played as a solo instrument for recreational purposes, though more usually it accompanies dancing and singing in ceremonial rituals...
The didgeridoo was also used as
a means of communication across far distances. Some of the sound waves from the instrument can be perceived through the ground or heard in an echo. Each player usually has his own base rhythm which enables others to identify the source of the message."