I have the official soundtrack, but it's missing tons of the in-game music, which is incredible, by the way. Is it possible for someone to make a rip of the music from the game, and upload it? Thanks! :)

Quick rip, not correctly looped (for now):
Mirrorcreator (http://www.mirrorcreator.com/files/C1DN1H2N/DK2.rar_links)

I didn't include tracks in the OST (unclean endings) and movie tracks (mixed with voices)

Few I can recognize, if somebody could help with the rest that would be great:
DK2_018 Hitori (final boss / theme song) [slightly different from the OST]
DK2_018_US Growing Wings (same) [used instead of Hitori in the US version]
DK2_024 map select
DK2_025 weapon select
DK2_026 city (?)
SS2_29 Staff roll (JP)
SS2_30_US Staff roll (US)
Others: I think they are mostly cutscene tracks (except DK2_056 and DK2_056_US, which are probably unused)

From the credits:
movie/event composer:
Takayuki Aihara (Studio Carnaval)
Masashi Yano (SuperSwerrp)
(so probably the extra tracks were done by these two)

Would you be willing to re-upload your rip, sadly the links are all down already.

i would love to bump this as well.

Bumping up as well. I've been searching the map and weapon select theme for years now.