How to do it ?
In order to evaluate the key of your didgeridoo, you must have a microphone, your computer and an electronic tuner.
What is a tuner ?
The electronic tuner allow you to determinate the main vibration frequency of the emitted son. By this way, you can evaluate the key of your didgeridoo with a key/frequency .
Here is a sample picture of the tuner, you can download it directly here or you can visit the website www.aptuner.com in order to obtain the latest version.
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