It's mainly getting more traction recently thanks to the push from MPE gaining more popularity. MPE improves on MIDI in several crucial ways, mainly allowing fo

It's mainly getting more traction recently thanks to the push from MPE gaining more popularity. MPE improves on MIDI in several crucial ways, mainly allowing for much better polyphonic parameter controls. However, it's also kind of a big hack internally, hijacking things like MIDI channels to work properly. MIDI 2.0 is largely a response to the proven need, to clean all that up and back the effort up to full industry collaboration (where MPE was a proprietary push from the likes of Roli).