Yeah, im pretty sure there are dozens of different ways to implement the playlist.
With the autocomplete, You can only view what you input into the box with whatever artist, etc, you enter.
And with my way, it lets you view it all in a different manner. And there are many other ways to bring up the playlist. Im not sure if the autocomplete you have to enter in all your music manually or not. I am assuming you do since its using an HTML file extension, With the other way ( the one I use), it automatically pulls the information from the database from the set user account.