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Conical drum 
Summary
Conical drums are a class of membranophone, 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 edit
- "534m Membranophones". SIL. Archived from the original on July 10, 2006. Retrieved January 4, 2007.