Yup, I tried NotePerformer for a while and though it’s interesting concept though I never really thought the output was that good and it didn’t look as though they were planning to improve it (the following release while I was trying it didn’t have any playback improvements.)
Back in the day I used to use Sibelius but thought Dorico might be a nice halfway house between that and a different DAW, but Expression Maps are beyond me. Spitfire was suggesting that UUAC would be a better way to switch between articulations. (See, I do read manuals.)
I did look at forum posts ( Spitfire Playback UACC and dynamics for beginners - #14 by Cees ) but they seemed to be dead. YouTube stuff was all years old.
Other stuff like this which is newer ( https://www.youtube.com/watch?v=CxKq1h6G5-Q&t=321s ) Nope, no Instruments option appears under Library so perhaps you switched things around in the menu, because who doesn’t like that? (Or perhaps the video is just wrong somehow.)
I figure if I really have to choose between a nicely notated score, and a nice output then I’ll go for a nice output and as such Dorico isn’t seemingly the tool for that.
Anyway, so I’m chatting with Spitfire support and they said for this kind of thing a DAW would be better than notation software like Dorico. So I’m wondering from Dorico users which DAW I should look to switch to.