Corridor 7: Alien Invasion

It's the first of Capstone's two FPSes using
the Wolfenstein 3D engine... which came out a
few months after Doom. Oops! 

It's got the same sound engine, too, so all the
music is in IMF. All of them can be played
in-game, and so you can record all of them
without the use of external programs. A lot of
it is repetitive, but some of them come off as
at least decent. Some notes to keep in mind:

* We do not know what the official names of
  each track are, so I named them according to
  when they're played in-game. Their original
  IMF file names are included in the Notes tag.
* This pack is based on the floppy version of
  the game. The CD version reassigns some songs
  to different floors, but the FM soundtrack is
  otherwise the same.
* The "Floor 5, 27" and "Floor 10" songs may
  sound like copies of one song when you first
  listen to them, but they're actually two
  distinct versions of that song. There are
  also a bunch of short, repetitive loops used
  on some levels instead of full songs, such
  as "Floor 18" and "Floor 19." These lead me
  to believe that they used the musician's
  entire song directly when putting the
  soundtrack together rather than just picking
  the finished ones.

Special thanks to Krzysztof Nikiel for the
AudioT Wolfenstein Pack Extractor and to Simon
Peter for the AdPlug plug-in; these programs
allowed me to extract the IMF files to learn
their filenames, and to check loop points,
respectively.

— The Golden Horse

Source: VGMRips