I went at the task of loading 2 copies of the plugin on their respective tracks and this was successful. I loaded the song on to the first copy and all OK. When I try this with the second copy (the one in which I will change the style) then it takes forever and doesn't finish. I tried installing the plugin on one track, loading the song and then duplicating the track. This was OK but song wasn't there, when I tried to looadit it, again, took forever with no success.

So I decided to try this with Reaper and got the same result.

So I can find a good use for this certainly, but it's back to RealBand for the other stuff like style variations within a song.

Thanks for all your help.