mididings VS midifilter.lv2

You might want to have a look at mididings.

You can use MidiDings ( http://das.nasophon.de/mididings ) to perform such remapings, but iirc you can also change the notes send by the m-audio device. Last time I did this I used the m-audio software under wine to do the remaping.

If you have a raspberry pi (or you run Linux) to hand, then mididings can also do the same functionality and act as a converter for anything that has USB midi but not DIN/TRS

Great project! I've been using mididings for similar purposes. Main draw of this for me is customization in go instead of cpp. How would you say it compares otherwise?

http://das.nasophon.de/mididings/

You can use the MIDI Key-Range Filter (by Robin Gareus) https://x42-plugins.com/x42/x42-midifilter . Add an Ardour midi bus. Use Ardour to change the output of your piano to the new midi bus. Add 2 plugins to the midi bus 1) an instance of the Midi Key-Range Filter, 2) copy your piano midi instrument to the midi bus. Left click on the Midi Key-Range Filter, set the low and high note to E4, set the operation range to "Exclude Range". You are instructing the Midi Key Range Filter to output all notes except #E4.

And don't forget about midi humanization/randomization plugins, though, like X42 ones, so it won't sound dull or robotic.

i'd suggest using one of R Gareus lv2filters (https://x42-plugins.com/x42/x42-midifilter) possibly hosted by the jalv program if there is no other LV2 host in your setup. The "midi keys transpose filter" might do what you want. It might be agood starting point if you need to roll your own.

I am not specialist by complex MIDI work, but as I know there are MIDI filters. So you can route the same Musescore MIDI output to some MIDI tracks in Ardour and filter out all except of required instrument for each Ardour track. May be MIDI Channel filter will do this work: https://x42-plugins.com/x42/x42-midifilter

Not sure if FLStudio supports LV2 plugins, but there might be something here: https://x42-plugins.com/x42/x42-midifilter

Does qsampler support lv2.plugins or can you run it in a plugin host? https://github.com/x42/midifilter.lv2 has a plugins to filter on a variety of criteria, I'd be surprised if it can filter pitch-bends.