Midi filtering/scripting to create ensemble patches out of orchestral sections?

[Scarlet Pumpernickel]

I'm interested in whether someone tried to do a plugin that would filter incoming midi signal and assign different midi channels to the notes depending on their pitch and their relationship to each other. The goal is to be able to use smaller orchestral sections (e.g. Violins1,2, Violas, Chelli, Basses) as a single ensemble patch.
I suspect Kontakt does something like that internally, but I'm looking for something that could be used with non-Kontakt sample libraries.

[funky lime]

Piz midiPolyphony is a free VST that splits notes to different channels in real time based based on how you configure it. It seems to do what you're asking.

MultiDivisi is a Kontakt multiscript for the same sort of thing, but obviously just for Kontakt.

Kawa has some Reaper scripts to make doing this kind of stuff easy in the piano roll, say, after you've recorded some block chords with an ensemble patch. Obviously, Reaper only, and non-realtime.

[Scarlet Pumpernickel]

Thank you very much, funky lime!

[Scarlet Pumpernickel]

Sorry for resurrecting my own thread, but if anyone else is interested in the topic, I found this thing:
https://divisimate.com/
It's standalone though and haven't bought it myself yet.