6. Hydraulophone
We touched on Hydraulophone briefly in the intro section, and here are the details. The Hydraulophone, as the name suggests, takes advantage of water pressure to produce music. The player can interact with water-jets with his/her finger tips to manipulate the flow of water and in turn create beautiful melodies. It was invented by Steve Mann, it is in primarily used as sensory exploration instrument for people with low vision, and of course to create music.