Interesting idea, especially using rhythm to curb spamming.

I think the rhythm aspect was a little bit frustrating since it was purely visual... I think a metronome or some sort of back beat might have helped a lot.

Even knowing the keys, I think it's tough for most to remember notes belong in which key based on text alone. Maybe it's good theory training though? From a layman gameplay perspective I would maybe invert or otherwise mark which notes are in the key you're in... or maybe even if the keys were laid out resembling a piano?

Aside from the game being technical though I could totally see playing this on a Nokia, solid entry!

I'm not that much of a music guy so I probably won't find the sauce in this game, but the limited controls made the game much more engaging. 

Eventually spam is useless.

I love this effect , I need to try recreate this

Interesting idea for a teeny tiny rhythm game! I found it to be very challenging especially with so many inputs. A beginner-friendly mode with 6 notes would have been nice ;)