The situation:
As much as I like the XP, the way the victory ME works annoys me to no end. If it's to short, you'll start hearing the map music in the battle screen. If it's to long you'll still hear it after you've returned to the map.
Usually what you want is a somewhat longer track that fades out when you return to the map. (Or at least the complete silence which was part of the 200X generation of Makers.)
The VX has the same problem, but there exists a script to fit it: Fade Battle End ME by Kylock.
For the XP, there is a mini scrip made by Atoa, however it stops the ME abruptly which isn't as nice as the fading version of the VX script mentioned above. The ME can also be stopped on the map via events, but again it simply stops or fades out on the map instead of in the transfer between battle and map.

The request:
Would it be possible to adapt Kylock's script to the XP? I know that everything audio related is difficult to do since the Audio class is hidden. I can only guess if this is a hard task or not and if it can't be done...well, then it shall be that way.