Some of the guitar tracks were made using a MIDI guitar and a live player, actually recording the MIDI data. This makes for a more realistic sounding track, give or take the well known problems inherent in MIDI synths trying to be real guitars, etc.

I have a feeling that the demo song you refer to was made that way, which likely means that the string choices are hard coded into the file, simply because the MIDI guitar pickup is necessarily hexaphonic in nature so that the MIDI software will always know which string is associated with a certain note. And that, of course defines the position for that particular performance.


--Mac