Hornbostel - Sachs
Tubular rattle drums
Drums with tubular bodies that have a larger diameter at the middle than at the ends. The drum bodies are rectilinear, with an angular profile. Tightly stretched membranes enclose the body at either end. The membranes are indirectly struck by pendant or enclosed pellets, or similar objects, when the drum is shaken. (Unknown).
Double-conical rattle drums
Individual double-conical rattle drums
Sets of double-conical rattle drums