Hornbostel - Sachs
Sets of hourglass-shaped rattle drums
Sets of drums with tubular bodies that have a smaller diameter at the middle than at the ends. Tightly stretched membranes enclose each drum body at either end. The membranes are indirectly struck by pendant pellets, or similar objects, when the drum is shaken. With membrane nailed to drum.
Sets of hourglass-shaped rattle drums with membrane nailed to drum