I discovered two issues in the current build:

• The OPL Synth versions of Doom and Doom 2 songs also replace the songs in game; their lumps should be renamed.
•  Only one texture hunt quest dialogue shows up (1: sprucing up) when you talk to a monster that has that kind of quest. The other five (2 through 6) don't show up at all.

Those are very good finds, thank you. The latter was due to a subtle typo. I'll try to get a new build out this weekend.