A Music Replacement PWAD for DOOM II: Hell on Earth
(Compatible with TNT and Plutonia)
This PWAD replaces the level themes, intermission, and endgame themes for DOOM II, TNT, Plutonia, and is supported by any 32 Level Megawad.
This is fully compatible with GZDoom, but has not been tested for Skulltag or Zandronum, however, I do not see why it wouldn't work with those.