To me the bars excluding bar 8 look OK, though the second half of each bar is in 8th+quarter style, not dotted quarter note (I too prefer dotted-quarters in this situation).

I'm not sure if bar 8 is resolvable into the quadruplet, that's beyond my experience. There is an option, by right-clicking in the beat, to change beat resolution, but in my limited experiments, the notes were not displayed as a quadruplet. There's no mention of quadruplets in the manual, but that's hardly surprising as BiaB is really rater 4/4 oriented. It may be worth experimenting further about triplets in the manual to see if there's a reverse-engineer solution.

The other option is the one you suggested of doing the notation in a package like MuseScore and transferring across in XML. At least that will give a better idea whether BiaB is actually able to handle it as you expected.

Jazz relative beginner, starting at a much older age than was helpful.
AVL:MXE Linux; Windows 11
BIAB2025 Audiophile, a bunch of other software.
Kawai MP6, Ui24R, Focusrite Saffire Pro40 and Scarletts
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