I did see this option - the issue I thought about changing the split point is that it would affect the piano part's split. The assumption as the notation options are global for all parts and not context sensitive (sensitive to the currently selected/displaying part).

... but I did walk through the suggestion and received a question (msgbox) which asked if I wanted my settings to apply to both the solo and melody part. Now the solo part is usually a treble clef instrument - so I didn't see a problem if the "global" setting did not have a low split-point forcing all the notes to treble clef. Certainly if there was a bass solo this setting may cause issues. So I selected "no, don't apply this to both melodist and soloist" as I wanted to only apply to the solo part.

What followed was:

Access violation at address 00B271F9 in module 'bbw.exe'. Read of address FF7377A1 at: 00B271F9

Your suggestion, seems to only apply to the solo/melody parts and seems to have further granularity to only select one or the other (or maybe only melody+solo OR only solo and not only melody). So this setting may be sufficient. However, the crash at the moment is preventing testing this feature live to see what happens.

... and maybe the "auto-hand split piano track" would cover the piano part.

The primary use for BIAB is as a practice tool. For this notation issue - I'm wanting to use the notation window to play along with the soloist as a reading exercise. Or sometimes for chord vs. part analysis. I play multiple instruments so I also like to look at the piano and bass parts. As I do not "do drums" - none of the ways that drums may or may not be notated are parts of my usage or scrutiny.

As such - if the notation has to be set back and forth to "properly" display piano vs. bass vs. guitar vs. sax vs. horns (in cases where there are horn section backgrounds) then I would consider this to be a bug.

Since the lead sheet (and notation) window allows for selecting any part (not just melody or solo) it was not apparent that the split would only affect these parts.

... further testing shows that when I select a different part in the notation window (bass or piano or soloist or ...) the split point is changing in a way that generally makes sense. The bass part's split point is high (C6) piano part is lower (C5) soloist is lower still (C4).

What this "leads" me to believe is that the notation window settings are indeed context sensitive (options apply only to the currently selected part). Which is almost a bug in that it does not show on the notation options the fact that one is editing only a single part.

If there are sections of the "Notation Window Options" that apply to only the selected instrument vs. some other specific instrument vs. all instruments - I would think it would be important to indicate which settings affect which instrument(s).

1/1/2024 - Win 10 BIAB 2019 64bit Build (644), RealBand 2019 (4)
Prior - Sig can't fit a running list - so just showing current version