Practice Mode with MIDI performance assessment

[dwerkjem]

I would like to propose a Practice Mode for MuseScore Studio that lets users play an existing score with a MIDI keyboard and receive feedback on pitch and timing accuracy.
I plan to build this feature regardless, but I believe MuseScore Studio is the ideal place for it. MuseScore already has the core architecture needed for this kind of tool: a mature score model, high-quality notation rendering, playback, MIDI support, and MusicXML import/export. Rather than duplicating those systems in a separate application, this feature could build directly on MuseScore’s existing strengths.