Didgeridoo players use a technique called 'circular breathing' that allows them to play continuously. Air stored in the cheeks is expelled whilst simultaneously breathing in through the nose. : r/interestingasfuck
Didgeridoo Lesson 1 | What is a didgeridoo and how to play it? - Wakademy
4 Ways to Play the Didgeridoo - wikiHow
Airdidge: Carbon Fiber Telescoping Didgeridoo for Travel - Didge Project