Conical drums are a class of
membranophone
A membranophone is any musical instrument which produces sound primarily by way of a vibrating stretched membrane. It is one of the four main divisions of instruments in the original Hornbostel-Sachs scheme of musical instrument classification. ...
, or
drum, that is characterized by sloping sides. They are usually one-headed. An example is the
timbal.
The conical drum also has strings on the side to keep the object together.
References
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Directly struck membranophones
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