Explain the principle on which Jaltarang works.

Jal Tarang which literally means waves in water is a percussion music instrument which was developed in India around 17th century. It consists of multiple open pots of water of various sizes which when stuck at the edges produce sound. The principle behind the working is that striking the edge of the pot produces a vibration in it which travels through the water making it vibrate as well. This vibration when transferred to surrounding air produces a sweet sound. The speed of vibration depends upon the intensity with which the vessel was struck and thus determines the pitch of sound produced.