The following answers are based on what I know. It is probably correct, but I hope somebody will correct me if I do happen to be wrong.
You should check if it need to be registered in sound.c; I think you need to define new "location/sound types" for it.
Then you can change the location init files so that your chosen locations use your new sound profile with custom music instead.
Pretty sure that is indeed the case.There are several styles, but the real/actuall music_alias.ini is in "\RESOURCE\INI\aliases\music_alias.ini" right? And the "Music Options.exe" just copies the selected .ini to the aforementioned location?
You can add anything. But you would need to also reference it in the PROGRAM folder so that it does something.And there are more categories then in the original (like "music_jungle") -> are those added in the game via the mod? Are they not used if not in the .ini? Can one just add new categories?
You should check if it need to be registered in sound.c; I think you need to define new "location/sound types" for it.
Then you can change the location init files so that your chosen locations use your new sound profile with custom music instead.
Yep.Different music files only get loaded on location change (or reload) right?
Yep.So if I want more variance I could copy some tracks from Sea Dogs or BuildMod and reference them in the "music_alias.ini"?