I almost forgot but I remember being able to drop in my own music files into the 'music' folder. Both GCII and Civ 5 had this and I typically added just the classics for this game.
(my own tastes here)
- Mozart
- Bach
- Beethoven
- Tchaikovsky
- Grieg
- Chopin
- Rachmaninoff
Anyway I have a very large collection of classic music that I would love to drop in as a mod. I seem to remember the game would 'cycle' through the list as I played. This actually made the game play (for me) very nice.
I really love the score for GCIII I just remembered that adding some of my own music would be a nice touch.