The drum belongs to the percussion group of music instruments. In the Hornbostel-Sachs category system, it is a membranophone.  Drums include at the very least one membrane, called a drumhead or drum skin, that is extended over a covering as well as struck, either directly with the gamer’s hands, or with a percussion club, to generate noise. There is typically a resonance directly to the underside of the drum, normally tuned to a somewhat lower pitch than the top drumhead. Various other methods have been used to trigger drums to make noise, such as the thumb roll. Drums are the globe’s oldest as well as most ubiquitous music instruments, and also the fundamental layout has stayed virtually the same for thousands of years. 
Drums may be played separately, with the player utilizing a solitary drum, and some drums such as the djembe are usually played by doing this. Others are generally played in a collection of two or even more, all played by the one player, such as bongo drums and also timpani. A variety of various drums together with cymbals develop the fundamental modern drum set.