Chlorthos Dragon was playing the MIDI file for the Killorn Keep theme in XMPlay, and managed to create a minimalist version of the track with several soundfonts he wasn’t using.
If you’re curious, the main soundfont used is Timbres of Heaven, by Don Allen. It’s a fairly generalized instrument voice package that is very good for those who want to fiddle around a bit…as Chlorthos did.