This abstraction layer should probably also have toggles for unifying all the sustain pedal / channel volume / etc. parsing that is currently spread across the various editor views.

This abstraction layer should probably also have toggles for unifying all the sustain pedal / channel volume / etc. parsing that is currently spread across the various editor views.

This is not so simple after all: MIDI keyboard shortcut handling and the MIDI mapper are currenlty applied before sustain pedal is evaluated (as it should be), so the receiving view needs to be in control of the logic here. Maybe we need to split MIDI callbacks into a "PreTranslate" callback (like MFC does for window messages) and a callback for using the MIDI messages for actual note input.