My two cents on a fun and interesting dialogue!  I would tend not to
include musical boxes, orchestrions and player/reproducing pianos as
robots since they act on themselves.  The Vorsetzers (push-up players)
act on other devices according to a program and thus I would call them
robots.

Another example could be a MIDI controller in my PC.  When I listen to
a MIDI file through my computer speakers, I doubt that anyone would
consider it a robot, yet connect a MIDI-controlled band organ or piano
and you might have a point, though here it's electronic controls, not
physical.

So I leave you with a question: would you consider a machine a robot
that only acted on itself?

Eliyahu Shahar