This is Tool’s song Lateralus (originally titled 9-8-7) played on kotos and bass kotos. It’s also surely the ultimate traditional Japanese music/Fibonacci sequence nerd jam of all time.
I’d like to mention here that the new YouTube layout is absolute crap and apparently I’m not alone in thinking so. And changing the five-star system to a like/dislike one is pretty much the worst user feedback decision I’ve seen in recent times. I guess the user testing groups were firmly set in the Keewl It’s Just Like Facebook demographic.