Duduk in A

I bought a Duduk from an eshop. After I could blow up the sound ,I found it was badly tuned. You can check the holes position from the Image I uploaded.

It's not convenient for me to buy duduk from Armenia so I decide to make one well tuned myself.

I measure a lot of master made duduk and cal the data carefully. And also I also cal them with my physic knowledge.

I consider this model is well tuned enough now.

Note: the hole to insert the reed is a little wide. Please add thread to your reed or surround paper to the reed and then insert the reed into the tube.