The tabla is a membranophone percussion instrument which is often used in Hindustani classical music. The main drum is called a tabla or dayan and is played with the dominant hand. Its shell is cylindrical and made out of wood, and its tight skin produces a distinct pitch when struck. The larger, low pitched drum, called bayan, has a bowl-shaped metal shell. Its membrane is looser than that of the tabla, enabling the player to manipulate the drum's pitch with his or her hand in performance.