It is rare that a drum is at once a musical instrument and a sculpture.
Slit drums like this Nedungu slit drums would have been center pieces of Mangbetu chiefs orchestras.
In order to communicate with their comrades, military expeditions retained groups of musicians who used such drums. They were made in all kinds of sizes. The value of a drum was in its tonal quality as well as the symmetry of its lines and beauty of its shape.
This drum is decorated with outlines of human figures and brass tacks.