P.S.: Now the real question is whether you can change the running-code on the keyboard so that it tries to infect other keyboards (of the same model) that might

P.S.: Now the real question is whether you can change the running-code on the keyboard so that it tries to infect other keyboards (of the same model) that might receive MIDI data originating from-it. In a way, this is a peek at the nightmare of Internet of Things (IoT, where the S stands for Security.) Almost any device might have a backdoor in it, and it might even be a stupid backdoor, like #0000.