I literally just beat the game a few minutes ago and just discovered this during the credits (I paused the Wii so I actually haven't finished them yet because I ran over to my laptop to make this thread :xd. I was messing around with the buttons and at one point I had heard notes from the harp. Confused by what had happened, I started to go through the buttons a little more observantly and I noticed that when I pressed A I could hear it. I pressed A again and started the swing the Wii remote like I did when I played the harp, and found out that you can play it during the credits. I thought it was kinda cool and it sounds awesome with the music that's in the background (if you play slowly and try to make it work with the music that is). I was wondering if this is something new or has this been discovered? I haven't heard anything about it so I thought it would be cool to make this thread. Sorry if this is already known information.