I am afraid I don't understand what you are trying to do.

The nomenclature the BIAB uses for chords is of course standardized to best possible. There remain the fact take the naming of chords does have differences. That fact however, is common across the board.

Is that what you are having a problem with? Or is it this...

Below is an example of the requirements for a Text File to be used to input chords to BIAB. AI should know this but I have seen that to not always be the case.

These are the BIAB rules for the text file to be used to input chords. The short examples below shows four beats per bar If there is only 1 chord between bars it will get get a whole Note duration. If only 2 chords per bar each will get 2 beats or a half not each. If three chords in a bar each will get a 1/4 note with a 1/4 rest on beat 4 of the bar. Max is four chords per bar with each getting a quarter note.

[Chords]
| Cm Eb| Bb Cm Cm Eb| Bb| Cm| Cm| Eb| Bb| Cm| Cm|
[ChordsEnd]

You just need to copy and paste this little text code into BIAB

The orignal proposal was to copy a list of all BIAB Chords. Then give that to AI along with the "rules" and ask AI to create a single text file. This part worked well, in fact AI made the BIAB chords list for me. In my first attempt something went afoul. I have not had time to repeat the effort.

BIAB – 2026, Reaper (current), i7-12700F Processor, 32GB DDR4-3200MHz RAM, Motu Audio Express 6x6 - My SoundCloud.