Didjerry, Didjerry, Didjerry.

"Well, here we are, still in the Merrie old land of Oz, and what is that strange looking pipe this man is smoking?". "This man is not smoking a pipe, he is playing an Aborigine didgeridoo". "What is a 'who'?. "Not a 'who', a 'doo'. "Oh, how do you doo?' "I'll tell you what, there is a lot of information about this musical instrument on Wikipedia, why don't you look it up?, it will tell you all the names for it, how it sounds, who plays one, what they look like, what they are made of and if that isn't enough, read it all again".
LITTLE FLY upon the 'Doo'/ If it's all the same to you/ If it was me, I'd fly away/ Before the 'Abo' starts to play.