The playback side of things I cannot give any definitive information about at the moment. Adjusting the pitch of an individual note via VST Note Expression will be possible using HALion, but I’m not sure how this will need to be controlled. I suspect we will need some kind of special property for a note that sends the right kind of message to HALion to adjust the correct note. It’s unlikely we’ll get this fully realised before the initial release as there are much more fundamental things not yet working, but we hope over time to make the program useful in this area.