This wonderful app is perfect for the little musician in you and a possible annoyance to others around you.  With this
app you have control of a virtual Koto (Japanese harp).  Just recently an update was done to the app where you don’t just record your attempts at otaku musical bliss, but you can now listen to 3 examples like Sakura, Rokudan and For Elise.  The new version even has the ability to create pinch tone effects and you can change the tone to the koto as well.