Does Didgeridoo length make a difference?
As a beginner, the didgeridoo you are after is from 100cm (40inches), or even better 120cm (47inches) to 140cm (56inches) in length. There is a big relationship between length and key. Basically the longer the didgeridoo the deeper the sound it produces. That’s a general rule and often proven wrong (darn termites always breaking the rules). You can definitely play a 100cm, didgeridoo for fun and the learning. It will be high pitched and need a fast tight vibration of the lips, good fun but it will restrict your sound range. Some of the shorter plastic Didgeridoos are great playing and sounding; they tend to be skinnier in the bore so they will play will like a shorter instrument.