The thavil is a barrel shaped
percussion instrument from
South India. It is used in
folk music and
Carnatic music, often accompanying the
nadaswaram. The thavil and the nadaswaram are essential ingredients of traditional festivals and ceremonies in South India.The thavil consists of a cylindrical shell hollowed out of a solid block of wood. Layers of animal skin (water buffalo on the right, goat on the left) are stretched across the two sides of the shell using
hemp hoops attached to the shell. The right face of the instrument has a larger diameter than the left side, and the right drum head is stretched very tightly, while the left drum head is kept loose to allow pitch bending.
See more at Wikipedia.org...