This guy has had this out on hte nexus for a while and it got took down for copyrighted content in the tracks (soundtracks for other games and films :P) He just replaces the original files with "enhanced" versions. This is why the XWM works for him. So I'll go through what i did again: load skyrim.esm and update.esm add a new music track (name it what you like but make it findable) add your wav sound to it (must reside in the data/music folder) add any conditions. Copy them from another track if you wish, to get the same output such as day/night open an existing music type, and add it to the one that you want. save the plugin close the ck run whatever file manager you have and load the game with Skyrim.esm, Update.esm, YOURPLUGIN.esp, .....anyotherplugins..... (NOTHING BETWEEN the first 3) see if your tracks play. if you have any other esm's that you wish to load, then you need to create a dummy esp (with nothing in it) then copy it so you have as many as the amount of extra esm's that you want to load, and then when creating the music plugin, load these esp's after skyrim and update.esm and create your new plugin. this will push it down on the load order so it shouldnt crash when you use it in a different position to 02