What is a Zoorna? Well, the real spelling should be Zurna apparently. It's an armenian musical instrument, also used in Turkey. Unlike the melodious sounding Duduk, the Zurna tends to have an annoying loud sound that gets to your brain after a while. My mother used to call me a Zurna when I bugged her too much as a kid ...
See zurna description and Zurna on Wiki.
Here's instructions on how to play the Zurna
Audio clips: Zurna melody and a wedding party song ; and a Duduk clip: Dle Yaman