I had the Idea recently to find an alternative way of playing midi files outside of SS14, instead of having to leave and joining an empty sandbox server.
I felt like VLC would be a good way to do this since it has fluidsynth built in which is what I believe SS14 uses. As it turns out, after fiddling with some settings, I couldn’t seem to get it to work. VLC recognised the soundfont file, but wouldn’t actually put any sound through. If anyone knows a good alternative player that works for it, or a fix for VLC, I’d be interested.