Sound effects: user-supplied pk_doom_sfx_20120224.wad; DMX PCM converted to WAV. Music: user-supplied Doom.zip / level2.mid through level9.mid, rendered in browser by a lightweight synthesizer. No author metadata supplied in archive.
Additional user-supplied MIDI: AUD_HO1991.mid and AUD_101621.mid. Notes rendered with the same browser synthesizer.