This is an OpenKH mod that randomizes the music in the PC port of Kingdom Hearts (1). You'll need the OpenKH Tools to use this mod.
To install the mod, you can either download the repository as a zip (the green 'Code' button) or add MainMemory/KH1PCMusicRando as a mod in the OpenKH Mod Manager, then run the included EXE file to set up the randomization.
This mod is designed to be compatible with the KH2 randomizer's built-in music support, the File menu has options to select the extracted game folder and custom music folder. If you don't set a custom music folder the tool looks in its own folder for music.
You can create subfolders named field, battle, boss, cutscene, and wild, and put .scd files in those folders based on where you want them to appear, you can also edit musiclist.json if you want to change the categories that songs use.
Source code for the program is available here for anyone curious.