When adding music:
Open up the music.cfg with notepad.
Create a keyword, such as Village and put it in like [Village]
underneath you'll type the songs of the music you stick in the Music folder in FH>Media>Music.
I suggest renaming any songs you want to use; so they're like village1, village2, etc.
Then in map maker, where it says music, you'd just type Village and hit test, should work then.