A drum is simply a skin stretched over a sounding board. It can look like almost anything and is called, more elegantly, a membranophone.
Drums are played in all of the world's cultures. With its rhythm, people are called together, urged to celebration, dance and funeral. You can incite soldiers to go to war with the help of the drum, communicate over long distances, or use the drum to go into a trance and make contact with other worlds. In certain cultures, the drum has been regarded as so powerful and dangerous that it has been forbidden.
The drums in this display fell silent long ago. But originally they had different functions, and their tone and rhythm conveyed many feelings and messages.
The hourglass-shaped drum in the middle is a donno, a talking drum from West Africa. It came to the Museum of Ethnography in 1907 as a gift from the German Professor Hans Meyer. You produce different pitches by holding the drum under your arm and squeezing the wires together so the skin is tightened or loosened.