[mikma]

Originally Posted by Slakah Interface/GLUES/MODELS/UI_MainMenu_Northrend/UI_MainMenu_Northrend.M2 Sound/Music/GlueScreenMusic/WotLK_main_title.mp3 although I'm not certain you will be able to access these files ingame, but it would be fairly easy to copy them over to your addon file.

http://www.blizzard.com/store/details.xml?id=1100000442
http://www.blizzard.com/store/details.xml?id=1100000443
http://eu.blizzard.com/store/details.xml?id=221003132