In some parts of the world, like Iceland, which sits upon the mid-Atlantic ridge of volcanoes, naturally occurring steam heats whole cities. Free, or nearly so. There is Handel's, of course. It was written possibly for a party around 1715. In none of these is water the musical medium.
Water is, in fact, amusical.
At one time, water was understood to ba an element. Water's most significant symbolic manifestation is the ocean, which sent out life onto the earth, which marks inexorable time, which swallows all back again. Water's flow symbolizes the flow of life. Heraclitus posited that time is a river, flowing endlessly. In some traditions, at the end of life, one was put upon the water to float away into the next life and into immortality.