While I was rebuilding Charles Wheatstone's concertina from 1844, I briefly thought about how a computer would be built if it had the layout of an English concertina.
I made a version with the keyboard on the sides that could be operated like the keys of a concertina.
A variant with a fold-out keyboard.
Both with screens in the middle.
And a tribute to the Gemini VI-A mission, during which a musical instrument (a harmonica with the same free reed technology as the concertina) was played in space for the first time.