This addon is very simple at this time. It plays special sounds when your target has 20% if you die or if the creature in your target die when you are in fight.
Moreover gives you the possibility to change your music, so you are available to let your own music play but this Add On supports only MP3-Files(!) and the file has to be in the "sound"-package BEFORE you WoW starts!
Moreover it gives your the opinion to activate/deactivate this addon with the slash commands "/executesounds", "/exesounds" or "/es"