look into "period hardware" which is itself a "dual joystick" (typically literally sold for use in descent). it's a gimmick that sold i.e. why have one joystic

look into "period hardware" which is itself a "dual joystick" (typically literally sold for use in descent). it's a gimmick that sold i.e. why have one joystick when you can have two. Then you should just have a single i/o interface to your MIDI game port.