Kamyl (Aluminium) in key of A. Circassian (adyghe) native open flute

Kamyl -  Circassian (Adyge) native flute
Circassians are the folk of Caucasus with ancient history and rich musical culture. 
Sound creation is complicated, video tutor is included. Lips and tooth are in use. 
Instrument has rich tembre. Scale range consist about two octaves.
Example of kamyl scale in key of A:
A' B-flat' C D
A  B-flat c d
e f g a
b-flat c' d'
Related instruments: Persian ney, Ossetian uadyndz, Turkish kaval, Abkhasian acharpyn, Bashkirian kouray