Originally Posted By: jazzsax
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In the mean time am I correct in thinking that if I revert to v.2016 I can still use the
newer RealTracks and RealDrums that came along with the 2018 release?


If you install 2018 it will put the new DEFAULT.SOL that should have all the new RealTracks in it.
There are also other files that contain the new RealDrums and drum info.

If you then extract Band-in-a-Box.app out of the latest 2016 update with something like Pacifist and rename it Band-in-a-Box 2016.app it should all work.