Battle for Andoria is nice for Events.
Battlefield as well is good for specific Events like Flashbacks or "Meanwhile with the Enemy" kind of thing.
Beyond the Stars I would most likely use for a Title Theme or some sort of Main Theme for the Prologue or Ending.
With Carrilon see above, it's got that "Evil Castle" feel to it and I love that.
Caves actually gets me a little pumped up as odd as it seems, I like how it sounds. Though I would probably use it as a Character Theme instead of an Area Theme it's great for both.
Courage and Fear is nice as well as Challenge, good possible battle themes for areas that use Carrilon.
Dangerous is another amazing Event Theme, Character Theme, or Area Theme.
Dark Kingdom is exactly what you would expect from the name in my opinion. It's sound is ominous, evil, dark. I like it
Darkening I would actually use for a dark dungeon like a dimly lit mine or forest since it sets the mood for creepy. Maybe an evil town as well.
Desert is just as one would expect from it's name, arabian-ish in a way, but it's fun too, so Yay for Desert Trade Towns or Desert Dungeons!
Draven is a pretty dark sounding character theme which I am guessing is why it's named "Draven".
Elysium is pretty neat, kind of battle or "Final Battle Approaching" event. Maybe even the final Dungeon.
Fairy Tale I am not sure what to make of, it's somewhat different than the others that I have listed above at first but quickly transgresses into something similar which is neat. It's not a bad thing that I am not sure what to make of it, it's good since it could be used for a lot of things. World Map, Area Theme, Character Theme, Event Theme.
Fossils and Badinirie... Oh where do I begin? I hope I can be forgiven for one small curse..This song should be named Fossils and Badassery I love it, upbeat, awesome, great for any kind of Ruins type of Dungeon or Event where you introduce an epic character in my opinion. :3
Journey seems just a bit slow when compared to the others but I suppose it's for the reason it is a little more heavy on bass and not as much piano in it as the others. Honestly it's still a really good song for Events or Dungeons.
Lynda is upbeat heroic/royal in a way. Fits for the type of "Hero Character" though like Draven I suppose that's why it is named "Lynda".
Mana Village. Finally we get to a good Town Theme, I like it, slow, peaceful, enjoyable, good on the ears.
Mirror Cabinet. Interesting, somewhat sad to me in tone at first but becomes a little more uplifting later on as if it is meant to do what a Mirror does.. Reflect.
Ruins of Truth. Ooooo~ Creepy Ruin Theme? Yes. Drums are nice in it, good for an Evil Ruin kind of theme or again, a Character Theme.
Selection. I almost feel as if this is meant to be a Title Theme, because of the name mainly but needless to say it fits in great.
Short Journey is actually pretty neat, kind of like Journey if you listen to both, you will notice Short Journey is kind of like a sped up and edited version of Journey which is great, adds variety. I would probably use it for World Map. Also it's true to it's name, which again.. I like. xD
Stalking and Attack... Heh.. Creepy, Awesome, beautiful music, good for events, dungeons, or character themes.
Stardust... Hmmm... Somewhat slow at first but quickly comes in with good drums and an overall epic melody good for Character Themes, the Chanting in it is amazing as well. I would probably use it for a Dungeon myself.
Superiority is a good one for Character Themes or Events, Maybe a Boss Battle. I like it quite a bit, it's inspiring. Especially for an Evil Character... Hehehehe >:3
The Chase is a fun one to listen to and I would actually use it for a Battle Theme or Event Theme it's so fun and upbeat. Actually makes me want to kind of run after something and fight or run away from something... Come to think of it, this would go well with a "Festival of the Hunt" or "Exterminate All Enemies!" kind of Quest due to it's upbeat nature.. I like it a lot.
The Lord Appears is pretty good for an Evil King type of character theme, at first I was like "Okay this may be a royal theme" and it caught me off guard with "Nope, Evil King! Haha!" which is great, so many "Heroic King Themes" are around so this is a great one!
The Sorcerers Apprentice.. Oh yes.. Yes.. This has all of my yesses... Oooooooooh~ I love this one, I honestly may use this one for one of the characters in my side-game.. So beautiful *.*
Ultima Arx is a good Dungeon or Event Theme. Personally I would use it as a dungeon theme.
Uncertain Fate. Yay! A "Flashback" Theme! I actually had a lack of these myself. I can't wait to use this one in my game to be honest!
Victory, a glorious Battle Theme actually, I like it. Starts epic, stays epic. Love it.
World Theme is again, like Lynda and Draven, exactly what you would expect from it's name. Something beautiful with a good tempo. Another good one.