I tried exporting some midi bass from Biab and converting them into a phrase in RapidComposer to fit scale and chord notes, so there's no passing notes.
With midi or RC in Biab it should be able to refit it to the notes you need and use in a good bass plugin.
I'm not musical but if I were I would get more into it and try and work out a better way.

This is what I get:

Attached Files (Click to download or enlarge) (Only available when you are logged in)
BB-Bass-To-RC.png (36.41 KB, 91 downloads)