Unfinished string instruments for Indian classical music are seen at a workshop on the outskirts of Kolkata, India, on Feb. 11, 2020. Many string instruments in Indian classical music feature portions of natural material which give a special sound to the instruments. (Xinhua/Tumpa Mondal)

An artisan works with dried gourds for string instruments of Indian classical music on the outskirts of Kolkata, India, on Feb. 11, 2020. Many string instruments in Indian classical music feature portions of natural material which give a special sound to the instruments. (Xinhua/Tumpa Mondal)

An artisan makes string instruments for Indian classical music on the outskirts of Kolkata, India, on Feb. 11, 2020. Many string instruments in Indian classical music feature portions of natural material which give a special sound to the instruments. (Xinhua/Tumpa Mondal)

An artisan plays a sitar, a string instrument for Indian classical music, at a instrument store in Kolkata, India, on Feb. 11, 2020. Many string instruments in Indian classical music feature portions of natural material which give a special sound to the instruments. (Xinhua/Tumpa Mondal)

An artisan makes string instruments for Indian classical music on the outskirts of Kolkata, India, on Feb. 11, 2020. Many string instruments in Indian classical music feature portions of natural material which give a special sound to the instruments. (Xinhua/Tumpa Mondal)