Well, he almost certainly learned to play bass with them strung inverted like that. Left handed instruments weren’t even remotely easy to find when dudes of a certain age or older would’ve been learning to play. I learned as a righty. Now, if *i* could flip my guitar over and play it just as well left-handed with the strings “upside down” relative to what I’ve done daily for 30 years? That’d be fuckin’ impressive. I cannot do that by the way. lol
You know you are funky when you are already playing funky and the guy says “make it funky” and you are funking the shit out of it and then the guy says “make it real funky”. Holy Funk man!
I've see 2 videos where it wasn't clear, but Jesus, it's confirmed - that guitar is NOT reverse strung, he's playing it truly right-handed - left handed!