Not that I’m familiar with the subject, but this article[1] suggests that Roli’s Seaboard would need MIDI >1.0 to transmit per-note pressure and pitch bend info, and the Seaboard is definitely keyboard based.
I can't say specifically what the situation with the Seaboard is, but it is possible to apply poliphonic expression with traditional MIDI, albeit with a major caveat. For example, the QuNexus keyboard that I have here can do it.
"MIDI Poliphonic Expression" (MPE) essentially involves only playing one note per channel, which means that things like pitch-bend (which apply to every note on a given channel) can therefore be applied per note. The major downside of doing this with traditional MIDI is you're still limited to 16 channels, but with MPE it then also means you're limited to 16 notes.
Pitch bend has been on MIDI controllers since forever, more or less. I'm super excited for this synth though, with per-note pitch-bend and multiple instruments reacting to key pressure: https://www.youtube.com/watch?v=UjZ6SuWxBFg
Coming from strings, that makes so much sense. Learning some keyed instruments I always found myself attempting to bend/vibrato in that way without thinking.
Huh ... it's a cheaper way to get into the Haken Eaganmatrix too, vs $3500 for a half-size Continuum. That's a really trippy synth and given what the Continuum needs, a great choice for the Osmose
I'm not sure everyone replying is familiar with the Roli Seaboard. It's keyboard shaped, but it's a bit like trying to play a piano made out of jello and encased inside a wetsuit. The movement & pressure of the gel gets interpreted as pitch, vibrato, velocity etc. It's trying to do more than your generic MIDI keyboard.
MIDI 1.0 supports polyphonic pressure and aftertouch messages - just not a lot of keyboard manufacturers supported it, since its pretty processor intensive - not to send, but to sense...
[1] https://reverb.com/news/roland-unveils-first-midi-2-ready-ke...