Azerbaijan

In some regions, it is called as "wedding drum" . Its diameter is significantly greater than other drums.

Great drum never sounded alone. In most cases, it is played together with jura drum. Its technical possibilities are limited compared to other drums. Kos drums of big size though was forgotten but its minimized size form is used by zourna group at present. Two wooden sticks are stricken on both sides of the surface of the instrument and it is sounded. This type of drums only are used in the open air.

its frame is made of solid cylindrical form wood, while the surface are made of leather. Diameter is 400-450 mm, height is 500-550 mm.