This game has a very intriguing concept, however it is a spiritual successor of a game made by the same company called "Rez".
Here is a gameplay video of Rez:
http://www.youtube.com/watch?v=A4EFNWe4mCcWhat is interesting about Rez and it's successor Child of Eden is that a whole game is built around synaesthesia where sounds and visuals are in sync of what you do. It is a very refreshing concept and the game developer deserves my respect for not only creating a unique game, but also having a courage of not following the "safe, old and tried" formula that dominates the gaming industry today.
I must admit this game is not my cup of tea, nevertheless, the concept is awesome.
The only difference I see between Rez and Child of Eden is better graphics, which is a natural development considering Rez was made for last gen consoles.