Mario,

I'm not sure, since beginners often either don't have the background to judge what fits best or at least don't have the self confidence to decide this.
But how about this: BiaB would generate a complete simple chordsheet, but in the result it might also indicate bars where it offers simple alternatives. That would be only slightly different from your idea.

Anyway, what I had in mind initially was something like shown in this video, for example:
https://www.youtube.com/watch?v=SRSKjJSeVJw

I'd think PG is so good at creating intelligent music tools, that it should be possible to bring such a kind of approach into BiaB.

BiaB Pro 2022; Windows 10
Bass: Intermediate; Piano: Beginner
I came to this forum in order to suggest feature improvements for non-professional musicians like myself that use BiaB mainly as a playalong tool and as a learning tool