The tambura is a pear-shaped, unfretted lute, usually with four strings, used as a drone in Indian music. It produces a characteristic buzzing sound that is used to set the harmonic foundation for a song without contributing to the melody. The Indian tambura may be related to the Turkish tambur as well as many other similarly-named Asian lutes. Though readily available, electronic tamburas are seen as inferior. Many tamburas are carved from wood, but some are made of what other organic material? Discuss
Source: The Free Dictionary