If the sounds are the unaltered sounds of NP they are really very good. Since I have and like Vienna Instruments, Garritan Orchestra 5, Garritan World Intruments and Sibelius library, my choice is also Graphical Midi Tools
https://santiagobarx.com/ that has been higly recommended to me by members of VSL forum , I find it’s way of functioning right on Sibelius very appealing and will I suspect become my standard finishing tool for all sound libraries. Reaper has also been highly recommended to me here inspite of my autlandish comment of hating DAW,s . It is apparently very good, free or very inexpensive. I suspect it will be useful for extreme fine tuning when I feel like doing that, so I will use it occasionally. Considering I knew nothing about any of this when I started this thread in Sibelius and Vienna Instruments it is clear that I have learnt a lot from all of you. I very sincerely thank all of you so very much. Only a week ago I was just about to, right on the verge of, purchasing EWQLSO silver + EW Quantum Leap RA, their credentials and demo's are extreamly impressive, but just before entering PayPal I decided to read some more reviews. It was reading very lukewarm reviews of EW that drove me in desperation to start this thread.