Hello.
I found two games that might be entertaining for fans of rhythm games.
This one is perfect for filling non productive free minutes:
Super Crazy Guitar Maniac Deluxe 2
If you have a musical keyboard that you can connect to your PC, this game is great too. It allows you to load any midi file into it and choose the channels that you want to play (you may also mark a channel to be played automatically, or to be just visible, or to not be displayed):
Synthesia. Watch the video at the main page.
It is great for training hands positioning and speed. It also lets you decrease or increase the speed of the falling notes.
Have fun.
Actually, "KKK" sounds like laugh in our language. We do not support Ku Klux Klan. I would kill KKK if it was a man. Cheers.