definitely keep going with it

I can see what you mean about it not quite turning out the way you wanted. I REALLY like the concept though. A couple of suggestions.

1. try different levels and different challenges with different songs
2. be a little more forgiving on the circles on the first couple of levels so people have some time to get into the game. As it was, it took a while before you realized it was going to get good.
3. try adding some background art when you get round to it.
I can't wait to see what another few hours put into this comes up with.

Nice

It gets challenging awesome game, I love when the circles start spinning.

A few hours?

I don't believe it. This is fun! Hard, but definitely fun.

It's kinda difficult but...

It has potential, keep it coming!

Great game, a little buggy

Simple, but great idea and very challenging too, especially when the target spot starts moving.

Though i had the feeling the hit detection is a little bit off on random occasions. Sometimes the game tells me I missed the key, though I am pretty sure i hit it pretty well. That was a little bit annoying.

Aside from that, great game :-)