Lots of potential

I think this game has lots of potential to be a game people will remember(which isnt a easy thing to achieve). The music is great, game mechanic is perhaps not completely original, but definitely provided a fresh twist.

There are things I think can be improved, but it may be already too late at this point. First is I think you should completely get rid of the fixed rings, the core mechanic of a ring that radiate from center outward, hitting the tap zone at the moment they need to be tapped on is already a great mechanic, those fixed rings on corner and center are only limiting the available screen space for tap zones to be placed, thus forced the tap zone to be small even on iPad.

The second possible way to improve is make tap registration more lax, allow longer time for a tap zone to be tapable and not register as miss, also make the tap zone hit box bigger (not the actual tap zone graphic, just the hit box)

The reason for both of my suggestion is not to make the game easier, because the grading scale remains unchanged, and if a node is not hit perfectly on time you just wont get a perfect score. The scoring is enough to motivate player to try to perfect it. The reason for these suggestion is to make the game play more continuous and fluid, so its more enjoyable.

a1454 about Zyon_RhythmGame