I really like this rendition of Billie Jean played by four musicians on one guitar. Any other examples of musicians doing weird and cool things with their instruments?
Keith Emmerson would do wild stuff with a piano. Flying it in the air. Playing upside down. Laying on the ground and pulling the piano/organ on top of him.
The OP reminded me of this with multiple people playing a Harpejji.
https://www.youtube.com/watch?v=FvlqdHJv2So&list=FL7dHQAaYQoDomh5cjpPMJWQ
This is not quite on the mark, but is worth seeing and is pretty unique. Five Pianists play Flandre’s Theme and do so very well.
IIRC, most of Walk Off The Earth’s videos are similar to that.
John Cage is pretty famous for this kind of stuff
Tatsuya Nakatani plays gongs with a violin-type bow he made himself, and it’s really incredible if you can ever catch a tour. More info here: https://www.kennedy-center.org/artists/n/na-nn/-nakatani-gong-orchestra/ and here’s a video of it: https://www.youtube.com/watch?v=f61bLyLmRdg
He also has a more eclectic experimental set where he’s just going ham on a drum set with some meditation bowls, cymbals and a single gong that is pretty intense. It gets a little weird but I appreciate the chaos.
Like this one:
Michael Hedges had a unique way of playing guitar. A number of clones have appeared since, but none of them have what he had in my opinion.
Leroy Troy, sort of a banjo manipulator:
The Flying Karamazov Brothers:
Of course, Jimmy Page used to use a bow on his Les Paul guitar. Didn’t do much for me and I sure wouldn’t want to play a concert with all that rosin on the strings.
Some country/bluegrass bands do a novelty act where they’ll switch instruments mid song and just keep passing them around. Or two pickers will each be playing 1 hand on their instruments and the other on the other instrument. Sorry I don’t have a specific example in mind to share.
The obscure 60s group the Creation played guitar with a bow; Jimmy Page, not surprisingly, tried it, too.
Back in the day “hipsters” would play a bass by plucking the strings instead of using a bow.
The late great Jeff Healy played all guitar, not only lap steel, sitting down with his guitar on his lap. I guess that style had something to do with his blindness.
ETA: and of course there were those guitarists who did tricks like playing with their teeth, behind their back and other stunts, the most famous of all of course Jimi Hendrix, who IIRC copied these stunts from T Bone Walker.