The rapper explained that the number was an inversion of 666, also known as “the mark of the beast,” a biblical term indicating Satan. “999 represents taking whatever ill, whatever bad situation, whatever struggle you're going through and turning it into something positive to push yourself forward,” Juice WRLD said.
This screenshot comes from The Matrix. The Matrix used a combination of stunts, CGI, slow motion, and compositing helps to create movie sequences like this one.
You answered your own question at the end where it say “In the finale of his Nintn Symphony, Beethoven took the unprecedented step of using a chorus and four solo vocalists.