The tānpurā is a long fretless lute on which a melody is played in a loop acting as a drone; the strings are four, five or six.

An essential instrument of Indian classical music, the smooth and rounded shape of the bridge and a small silk thread inserted between the strings and this makes the strings "curl", thus reinforcing the presence of the harmonics and creating this characteristic sound.

Presentation of tānpurā by Sudhanshu Sharma