I am uncertain - do I need to turn on IVR for a piano when I use a VST instrument such as Addictive Keys Piano? With my piece there are four to six voices going on all the time, so this means six instances of the VST, yes?
Does the same apply to dynamics? if I apply voice specific dynamics in the score, are they only output correctly if you use IRV? I am doing some minimal test examples now, but I am quite uncertain about this.
No, typically you don’t need to use independent voice playback for piano or other percussive instruments, since normally these instruments use MIDI velocity for dynamics. NotePerformer is a special case, since Arne chose to use MIDI modulation (CC1), which is a per-channel rather than per-note modifier, and as such can’t have different values for different notes sounding at the same time. With practically all other piano instruments, I would expect you to be able to achieve the results you want using a single instance with no messing about.
So after turning on IRV, the LH and RH can play independent staccatos, but not dynamics. Adding independent dynamics to the top and bottom staves will playback the whole piano using only the bottom dynamics. Suggestions?