Indian classical music
Udit Pankhania (left, playing Table) and Tarun Jasani (right, playing Sarod) at Walton Church, The Open University, 25-Jun-2008.
The body of the Sarod is of course hollow and has a top layer of goat skin; the bridge is made from bone and because of the use of metal strings, wears down with time.
The box in the middle at the back is an electronic drone; being electronic, its pitch doesn't drift in different conditions, meaning the two players have something they can tune to. Its sound would traditionally be played by another musician on a Tambura.
Quote image reference: 400D_12276.jpg
Photo copyright © 2008, unknown