I think it is a little bit problematic to run the onestop Midi in MuseScore because, the original midi file uses a lot of instrument changes (WHICH MuseScore doesen't suport... yet) so it can all be just 16 intruments. This is why for example, in the horror bit (bar 63), the (what is supposed to be) sitar, in MuseScore, plays back as Seashore. And also near the end (the gospel part) the "piano" part is french horns instead.