Taito's Robot Guitarist
At the World Expo 1988 in Brisbane Australia I saw and heard this startling device.
Built by Taito and featuring a Kohno guitar, it ran on compressed air and sounded great!
It had an expertly programmed repertoire of solo guitar pieces ranging from classical to jazz and popular music.
I observed it closely for a couple of hours and paid particular attention to the "Right Hand" technique. By attacking the strings at an angle it produced a good strong tone. I figured that a human player ought to be able to produce at the very least this strength of tone, with the added advantage of being able to vary the timbre.