I was extremely happy when I heard that Uematsu would be composing for Final Fantasy XIV, and while I think he has done an excellent job so far, there really is a lack of dungeon music in the game.
Final Fantasy XI suffered this problem as well. I'll admit that some cave or mountain areas are better with just ambient effects, but Uematsu has always made great dungeon themes in the past. It would be criminal to prevent him from making some for XIV. For example:
Giant's Dungeon - http://www.youtube.com/watch?v=fW3An...eature=related
The Phantom Forest - http://www.youtube.com/watch?v=Tq8TV1PqZvw
Mount Ordeals - http://www.youtube.com/watch?v=3hATVIUphlQ
Final Fantasy IV dungeon theme - http://www.youtube.com/watch?v=Qw5BW8_4PJ8
Fate in Haze - http://www.youtube.com/watch?v=vMNf5-Y25pQ
Awakened Forest - http://www.youtube.com/watch?v=cXphJ9ptZjc
Devil's Lab - http://www.youtube.com/watch?v=IMK-y8w6YhA
(While there is nothing similar to this in game now, considering Garlean technology, something close would be amazing for a Garlean base/ factory)
...and many more.
A few examples from more recent titles such as Lost Odyssey and Blue Dragon:
Ipsilon Mountains - http://www.youtube.com/watch?v=Qwv3tRKu3bM
Eastern Ruins - http://www.youtube.com/watch?v=sVnly-OASsI
Cavern - http://www.youtube.com/watch?v=-Fjv6LxB7A0
One of the current dungeons in La Noscea, Mistbeard Cove, does have it's own theme, however the rest of them just have ambient noises...and perhaps could benefit from either having a specific theme, a general theme for most dungeons of a certain type, or a mixture of music for certain sections and ambient noises for deeper sections.
I know there is not a dev tag for this, however, I think adding a few themes to current dungeons as well as keeping this in mind for future dungeons, would go a long way towards bringing that Final Fantasy feel back into Final Fantasy XIV.
EDIT: Just to make sure, i'm not asking about direct lifts or arrangements of themes from specific titles, but just more work from Uematsu to flesh out the various locations in the game.