I'm sorry, but I didn't like it.
It was a good idea, but the songs were too slow, its annoying to press Enter to strum whilst holding the numbers, I found that using star power was a bit dodgy, and the button detection was very poor, and as a result, I mostly failed the songs. If you were to remake this, let us have the option for custom controls and improve the button detection. Also, let us have timed presses, instead of holding and strumming. These options would make this game much better.
I will give you thanks for this interesting idea, but for now, I'll stick with either the Pick Of Destiny, or Flash Hero for now.
I'll give this game a 5/10