Thank you! Unfortunately, while I'm aware of the crashing issue, I have no idea what's causing it, nor how to fix it. If anyone else knows, I'd absolutely go about fixing it, but I think it may well be an issue with music mods as a whole.
As for ORAS music, while I COULD compile such a thing, it would be redundant when Eggplant has already made it, here. This, indeed, was what inspired me to make this mod, as it also has a Kanto replacer pack with HGSS music in it