The Armenian medieval spiritual music performed by Vahagn Stamboltsian is awesome and sublime! Narek Saribekyan, dear, thank you for sharing this brilliant video with us!
I wish there was some more! I remember during 1980s Lebanese Armenian piano player Kochian I do not remember his first name, I believe his name is Jack. He himself played Armenian Spiritual songs on pipe organ and it was remarkable. I use to have the album!