Hello :) I tested your game and found the concept very cool (also the environment is beautiful), but in practice I didn't stay longer than a few minutes.
Maybe an interface differentiating more the several sounds on the obelisks could be more enjoyable, and it would be nice to see how it's influencing the environment (like changing the colors or other). Maybe more basses?
I don't say it in order to be mean (on the contrary), i would love to see a more complete version of this game, you made a really great job :)
Also, I encountered a bug, when you quit too fast an obelisk, the interface stay on the screen.
Wish you a good continuation, I'll stay informed.
Manu