Its soundboard is usually made of mulberry wood and some patterened holes are burned in it .
The Iranian tanbur has a narrow pear - shaped body that normally is made with 7 to 10 glued together separate ribs .
tanbur 's soundboard is usually made of mulberry wood and some patterened holes are burned in it .
The Iranian tanbur has a narrow pear - shaped body that normally is made with 7 to 10 glued together separate ribs .