Could you support sf3 soundfont format?
https://github.com/wschweer/sftools
https://soundcloud.com/lasconic/sets/reunion-musescore-1-3-vs-2-0
http://musescore.org/en/node/42051
This is only one intern format of MuseScore 2.0 program.
SF3 is compressed OCG, and only on MuseScore 2.0 can
be used.
SF2 File Converter/Compressor 1.0.1 (Windows)
Convert SF2 SoundFonts to SF3 (Vorbis) or SF4 (FLAC) and back
http://www.cognitone.com/downloads/index.stml?p=5