Hi Rotech,
Perhaps there is a fundamental problem of understanding here:
If you play the automatic accompaniment, i.e. with a style, and record this as a MIDI file, exactly what you hear is recorded (i.e. every single note). If you played wrong chords when recording, you would have to change every single "wrong" MIDI note. The originally played chords are also saved in the MIDI file (as so-called “XF Chord Meta Events”). But even if you were to edit/change these chords later, it would not affect the recorded MIDI file.
In many cases it is easier to just repeat the recording. You can correct individual incorrect tones on the keyboard in “Song Creator > Step Edit”.
The PC (Windows) program “MixMaster” is highly recommended for MIDI file editing. For more extensive MIDI editing, you usually use a sequencer program (DAW) such as Cubase or Cakewalk. There are, among other things, graphical editors (“Piano Roll Editor”) for making quick adjustments.
P.S.
To replace incorrectly played passages in MIDI files, you could of course use the Punch In/Out recording method mentioned above (controlled by a foot switch). Many users do it this way, but to be honest, I have never used this. Depending on what functions I need, I edit MIDI files with MixMaster, Midifile Optimizer (by Midiland) or in DAW programs.
Best regards,
Chris
