Looks to me like you'd simply decide where the centerpoint is for the area you'd want the music to play at, and the distance from that centerpoint at which a character will start to hear the sound/music. I'm not sure what the other fields are, but it -looks- like you'd then add a line similar to:
Code:
2,your_music_file.mp3,0,0,1.00,0,0,1,X-Coord,Y-Coord,Z-Coord,Z-Radius?,XY-Radius,0.00,0.00,0,0,0,1.00,1