HMark, Mid just gives instructions to a synth to play a note on a certain "instrument" at a given time, for so long, etc and chord patterns are not included. If you want to loook at chords or tab, try one of the many packages that use thier own format.

I am a Cakewalk user - not the best package for notation and mine is an early version but the later ones will put chords on the staff and seems to have a good selection of guitar chords in various positions.

Jon