Yep, like Jim said, the StyleMaker is where you can see how the MIDI sausage is made. That being said, if the track is a Super MIDI track, my understanding is that it uses a different system to generate the accompaniment, so I don't think we have any insight into that. But for regular MIDI styles, you can see how the patterns are formed. Be sure to look any masks and weights on the pattern as well, as that provides the rules for when that pattern is used (for example, you can set a mask to tell it to play a pattern only if the following chord is a 4th up - because maybe that pattern is a walk up from 1 to 4).

Definitely look at the video Jim posted to get a better idea.

John

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