[mastazi]

It reminds me of the Michela Method which is a method of steno typing that uses a short keyboard, similar to a cut down version of a piano keyboard. It is used in the Italian Parliament to produce the official transcripts.

Video of the stenotype machine at the Italian Senate (audio in Italian) https://youtu.be/e-z1ZAsQjio?t=18

Wikipedia page about the writing method (unfortunately only available in Italian, you may try Google Translate) https://it.wikipedia.org/wiki/Metodo_Michela

How to build a Michela Stenotype machine by modifying a MIDI keyboard: https://www.youtube.com/watch?v=q9Y9jtOB7G0

OpenSteno SW that supports various Stenotype machines including the Michela machine built using a MIDI keyboard as seen above http://www.openstenoproject.org/

[mastazi]

I just wanted to add that, in order to use the Michela Method with Plover (the software from OpenSteno), you will also need the Plover-MIDI plugin: https://pypi.org/project/plover-midi/ (both "plover" and "plover-midi" are on Pip)

[djmips]

Wow the stenotype machine at the Italian Senate is actually a piano keyboard!