Here's how it will go. I will put a list of song themes that is in most Final Fantasy games.
Post your favorite songs according to the theme/category.
Here's how you'll post them:

1. NAME of the song
2. NAME of the FINAL FANTASY game the song is found
- OPTIONAL: WHERE and/or WHEN can you hear it in the game?
- OPTIONAL: Give at least 1 comment on why do you like it.

NOTE: I may UPDATE THE LIST IF SOMEONE TELLS ME THAT IT LACKS OTHER THEMES.
Who knows? I'm not perfect after all.

Here Ya Go:

1) Your Most Favorite Songs (TOP 5)

2) Prelude Theme

3) Battle Theme (non-boss)

4) Boss Battle Theme

5) City/Town

6) Authorized Facility (mostly military building)/Castle Theme (ex. Lunar Gate from FF VIII or Vector from FF VI)

7) Overworld/World Map Theme

8) Dungeon/Ruin Theme (NON-FINAL ONLY)

9) Event Theme

10) Mini-game Theme

11) Character Theme

12) Aerial Vehicle Theme

13) Final Dungeon Theme

14) Semi-Final Boss Theme (just in case for the songs like "Maybe I'm A Lion" or "Birth of God")

15) Final Boss Theme

16) End Credits/Staff Role Theme (To anyone who actually listens to the musics during the end credits)

17) J-Pop like song (ex. Suteki Da Ne)

18) Chocobo ; )

19) Most Soothing

20) Makes You Wanna Go Rock N' Roll


Add-On Reminders:
- "The Premonition" (FF VIII) can be considered as Boss or Semi-Final Boss theme.
- "Hurry Faster" (FF VII) can be considered as Mini-game, Battle, or Event theme.
- "Lunatic Pandora" (FF VIII) can be considered a Dungeon/Ruin or Authorized Facility/Castle theme.
- "Those Chosen By the Planet" (FF VII) can be considered as both Character or Event theme.

GOOD LUCK POSTING. ENJOY.