Panzer General sounds like the MT-32 playing a General MIDI song.

Here one of my videos also showing the Wing Commander Introduction. Recorded on a real Roland MT-32 (Old) and might come in handy as reference:

http://www.youtube.com/watch?v=sKjWI6modB4

Ive had a cm-64 for some times, very recently i acquired a genuine mt32 ( old ) but it does not seem to work as good as my cm-64 in dos box.

Will try it with my dos pc soon, when my basement rearrangement and secondary ( retro ) computing post will be operational.