http://www.youtube.com/watch?v=O8ezDEk3qCg&feature=related
http://www.youtube.com/watch?v=b1q1pPI79TY&feature=related
(After Twinkle, Twinkle)
Another song: (Done on guitar with equation) 3:45 seconds...complete with intro...Song starts at 0:45 seconds
http://www.youtube.com/watch?v=9WbbyAq5BjE