The sound of an instrument consisting of at least one membrane, called a drumhead or drum skin, that is stretched over a shell and struck, either directly with the player's hands, or with a drum stick, to produce sound.
The sound of an orchestral drum consisting of a skin stretched over a large bowl traditionally made of copper, where the head is tensioned to produce an identifiable pitch.
The sound of a classical Hindustani percussion instrument consisting of a pair of hand drums of contrasting sizes and timbres, producing distinct pitches when struck. The larger drum has a pitch that can be manipulated with the player's hand.