Hi Andrew.

I haven't used Auto-fix for a while. Whenever I have, though, it's always been okay. I wonder if you have 'Natural Arrangements' active in "Song Settings". If you do, this setting gives BIAB the freedom to modify chords if PG Music's chord-progression analysis routines determine that there is a better chord to suit the progression. Then when auto-fix is enabled, it's possible that in the audio tuning of the sour notes, there is substantial changes. This could potentially cause the output sound to be noticeably affected.

With 'Natural Arrangement' off, the generated chords are as written (although 7ths can sometimes get added to notes). To remove every opportunity for BIAB to not make any changes to chords, (a) disengage Natural Arrangements and (b) activate 'Force Song to Simple Arrangement (non-embellished)'.

See if that helps.

--Noel

P.S. If you want to upload the BIAB MGU or SGU file to a sharing site and then post the link here. I'm happy to download the file and have a listen.


MY SONGS...
Audiophile BIAB 2026