I've been testing a bit in Doomsday 2.1, looks great! I've noticed a couple of issues with the music in this version, though.
-The IDMUS cheat doesn't appear to work (at least in Doom II), any selection comes back with an "Impossible selection" message.
-I see FluidSynth has been added to the Windows version of Doomsday. I go to select a soundfont (.sf2) but it doesn't appear to save the selection and defaults to no selection, and because of that, no music plays.
-How long as the FMOD plugin been broken for music? It works for sound effects, but for music, all I hear are these popping sounds.
-The only plugin for music playback that seems to work in Doomsday is the SDL Mixer, but there's some issue here where the opening instruments of a song seem to not play at the beginning of a track.