A talking fairy, domestic violence, a guy in a lion suit, and classical music loving aliens.
All in all the story is pretty much just filler, it's really more of an annoyance than anything. Where this game scores points is 1) the unique gameplay and 2) the classical music. The gameplay and controls are incredibly simple, yet unique. All you really use is the X button and the occasional direction button to bring in a new instrument. The tricky part is with the X button, which you have to do two things with. First, you have to time it correctly with the notes. And second, you have to use the button with the proper force. For light notes press lightly, for heavy press hard, and medium somewhere in between. I, for one, had no idea PS2 controllers were even capable of recognizing how hard you press the buttons, but apparently they are. I am surprised that no other games (none that I have played, anyway) have taken advantage of this.
The other good thing about this game was the music. If you're at all into classical music, there's some good music to be had here.
There's not a whole lot of depth to this game, but if you're looking for something different, you're into classical music, and you can find this game at a cheap price, go for it.