*UPDATE*

I decided to take a deeper dive into this <cough> chord ‘misinterpretation’ problem.
I’ve made some interesting discoveries.

As I mentioned in my recent post, for the past week or so I was just focused on one chord, the mMaj7 chord.

But when things started to resolve with it, with fixes and such, I began to notice that many of my other chords were not playing properly either. I had simply focused on the mMaj7 chord because it really stuck out like a sore thumb.

Before I get to the other chords, let me return to the mMaj7 chords.

I decided to return to my saved songs (saved various versions of the same song).
For some unknown reason, ALL of my saved songs were now working!
That’s right, the songs where the mMaj7 chords were previously not sounding, were now sounding!

I took careful note of the Sour Notes On/Off and Natural Arrangements On/Off settings, because these were the two settings that I was advised would fix the problem.
Specifically, I was told Sour Notes Off and Natural Arrangements Off would fix the mMaj7 problem.

So this is what the settings were when I re-opened five different versions of the same song.
‘Natural Arrangements’ has three settings, On, Off and As in Arrangement Options.
Fix Sour Notes is abbreviated to FSN.
Natural Arrangements is abbreviated to NA.

SONG1 FSN Off, NA ‘As in Arrangement Options’.
SONG1a FSN On, (NA) On
SONG1b FSN On, NA On
SONG1c FSN On, NA On
SONG1d FSN Off, NA Off (worked in Chorus 1 only! ) Changed to J!MANCNI (midi) Worked ALL Choruses

So while I was happy to hear the mMaj7 chord being played in almost every version now,
except SONG1d (it only played it in Chorus 1) I was thoroughly confused.

Why was it working now? And why was it working with the key settings (FSN and NA)
set the ‘wrong’ way? Three of the five song versions had FSN and NA set to ON, when I was told turning them OFF would fix the problem!

But when I changed the Style from my regular _JAZOR60 to J!MANCNI (I deliberately wanted to test a Midi style) all of the mMaj7 chords worked right out of the box. I had a hunch they would.
And so I continued with my testing. I took the list of chords I posted above and tried them all out with the same Midi style (J!MANCNI).
The chords were:
CMaj7
Am7
Am6
G7b9
Dm7
Bm6
E7
I added a few more in addition to them m7b5 and m11.

They all played faithfully. No problems at all.
It seems pretty clear that the problems with chord ‘interpretation’ <cough>
are rooted in RealTracks. Midi has no problem dealing with almost anything you throw at it.

So now my questions are “Why is this?”
And “Why did my problem versions mentioned above get fixed, seemingly on their own?”

A BIAB user for more than 30 years (if you can believe it) !