If you ever played the original Ragnarok Online in the open beta stages you are very familiar with the login screen and the music. Sometimes you had to type login a lot of times before actually getting ingame.
The original login music still brings great nostalgia to this day. (http://www.youtube.com/watch?v=FUQ6Rb9qk500)
Since the closed beta client is out, we can now see the new R02 login screen and hear the music, which isn't half bad.