Song is fifth movement in Belief suite from Outskirt. It's a tribute to "TBA" by Shinu Mazafakingu Ujimushi, an english grindcore band who recorded only that song - better, a first take of a possible song, with horrible recording "quality" - on a Lo-Fi or Die compilation.
I replayed (almost) slavishly same drum sequence, with different timbers and sounds, and recreated the "roaring" with three violas. The result is kind of "Kronos Quartet plays Shinu Mazafakingu Ujimushi". Melody is a single note: the nail-in-your-head snare drum, more metallic than Ulrich's snare drum in St. Anger. I loved the idea: a theme based on a single hit noise.
Video is a frenzy grotesque mix of die-cutted, muppeted, and rotoscoped people watching an Hox Vox concert. The real main character is the audience, and what pass into, through, above, under them. Then in the final part you'll see eventually who, or better, what's playing.