Andy, please consider my answer as my best guess. I've requested more info.

I do not hear any change of root.

I still hear the top note of the chord (essential!).

I do hear better voice leading.

If the chord is being simplified, I'm not bothered by it. As a composer, I'm really surprised by that!

I am listening just to piano and guitar.

BIAB always did take 'liberties' with chords just as a real player woul; it's just better now. I'm not a pianist but I hear almost no mass jumping of range in the comping.

I suspect your example is a good one: if I write 7alt, it's wide open and they can revoice it to improve voice leading.

Stay tuned.


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.