Water Music &Delight / musical instrument

Water Music & Delight is truly a musical instrument of nature with water as its only interface, fusing the essences of Heaven and Man in Oriental philosophy. Music is for nature and from nature, but when user is playing traditional musical instruments, what he is really touching? Though his thinking is related to the natural, actually he is far from nature.
It can play 25 notes, from Double Bass C to Double High A in Pentatonic Scales. The IC instantly recognizes the corresponding note and volume played. The Area for of each note is suited to the size of one finger.
Video Link: http://www.tudou.com/programs/view/xOnDdEKnh1k/?phd=99