You don't notice it stopping completely when you play?
Holler if you find one.
Yeah I modded music files in M2TW and made my own overhaul music mod for when I occasionally play A Proper Empire (ETW) basking in my love for soundtracks like Last of the Mohicans, Master & Commander, along with some wild period classical music, but what you describe is worse than I thought. I was already deterred by the new program I'd have to learn. However, someone who knows that and has the luxury of free time could easily do what you describe
@KAM I think a lot of DeI players already use the non-steam TWC version anyway. An offline submod would surely be welcomed.