If you play a G-B-D on your keyboard, BIAB knows that's a G chord. If the MIDI file has a G-B-D, it knows it's a G chord. Throw in something else (like maybe the melody track is playing an E), then BIAB has to guess what it is. I understand it has some intelligence, but that E might cause it to think it's an Em7 chord. That's why you might want to leave certain instruments out of the mix to create the chord chart. BIAB is pretty good at getting it right, but it really depends on the source material. And you still have to use your brain to figure out the things that don't sound right. I'll often bring in a MIDI file, then mute the melody track, enable a BIAB style, and listen to the chord progression that resulted. Fix what's wrong, then move along with the song.


John

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