72716,  음악란의 모든 작성  Data . . Gone !!  (Study all functions again,  90716)

2)  Clean up - All data,  should start fresh . . .

http://minchosda.org/xe/freeboard/540131    (링크 삽입에서 . . )

https://www.youtube.com/watch?v=Eb83IeEUurc

https://www.youtube.com/watch?v=Eb83IeEUurc