Hi Ron,
I am glad you liked it!
I threw in an XF MIDI file in my tutorial containing every Major, Minor and Dominant 7th Chords in all keys.
I played the blocked chords with my left hand to drive the Style while I played the arpeggiated version of the chords with my right hand.
I wanted to show how Notation Composer faithfully picks up all the left hand chords and passes them into the exported MusicXML file.
If I were to open the XF MIDI file directly in MuseScore, the Chord Symbols would not show up since it does not recognize the Chord Meta Events.
This is where Notation Composer comes to the rescue. It extracts the Meta Chord Events and writes them to the MusicXML file which can subsequently be read by MuseScore.