F Mod Implementation - What's Your Normal Process?

I wanted to write background music that still kind of felt like a classic Zelda-style game. So what we ended up doing is on the entire like map of the world, there are very specific screens that are core to a certain area. And so what ends up happening is as you leave from one major area, it'll start transitioning into like a low key version of that background music. But the thing that's interesting about those screens is that they could have, depending on where you've come from, it's a different piece of music. I'm just getting into the the thick of it when I've been working in F mod.