It is an optional download for fans of the 4 films. It features music from all 4 movies. It is different from the old PotC music pack. I've re-mixed a lot of the old music, gave new music to events that didn't have music, and added music from the newest movie: On Stranger Tides.
NOTE: REQUIRES A NEW GAME.
To get the new music pack, simply download the file here: http://www.pyratesahoy.com/potc/Legendary_Spider/LS_4_Film_Music_Pack.exe
Then follow these steps:
1. Once downloaded, click on the file and extract it to your main folder (e.g. Bethesda Softworks/Pirates of the Caribbean)
2. When it asks to overwrite files, click "Yes to all".
3.Start the game, and in the main menu, click on "Options", then click on "Sounds", then click on "Music Scheme" and click the arrow left or right and select "Pirates of the Caribbean".
4. Start a new game (a new game is required) and enjoy!
I worked hard on this, so I hope you guys enjoy it. Let me know if you have any problems with it. I'll be happy to help.