Andrew Huang and Rob Scallon made a fun video about the harpejji instrument:
https://www.youtube.com/watch?v=NFzW9rnaR7w

It's neat that the strings are automatically muted when you don't touch them. Guitars could benefit from that too.

I would love to try a harpejji some day. They cost a lot, so I probably won't get one myself .

Not strings but pickups are muted. That gives more options, like you could get a sustain pedal and not mute pickups, probably.

There are way too many cool instruments that one would like to try