Interesting, but how is it different from Sentris?
http://www.rockpapershotgun.com/2013/10/29/sentris-is-a-puzzle-game-about-making-music-2/
http://www.rockpapershotgun.com/2013/10/29/sentris-is-a-puzzle-game-about-making-music-2/
Yeah, definitely looks very similar. I'll download it and check it out, but from what I see in the video I think they play differently.
I have upload my 'quick and dirty' prototype here: http://perroelectrico.com/tune/
The basic mechanic is to rotate the outer circle to make the colors match the second one. Depending on the colors matching, different notes will play. That's the core, and I have some ideas on how to make it varied, which I'll be testing in time.
I'm targeting touch devices, as it feels very natural to rotate something with your thumb while holding your phone.
I like music making games, so let's see how this turns out. Good luck 



