This video has a fair few instances where there is an exaggerated wiggling of the guitar strings. I rationalise this by saying its a similar effect to rotoscoping, like where wheels appear to spin backwards as they accelerate in footage. But given the context of music, I remember reading about subharmonics and, besides a particularly niche technique on stringed instruments, they don't really have any real world analogues.
Should these strings appear to oscillate at frequencies related to the subharmonics? If so, what does this say about filming rotating objects and their angular frequency?