Rock in Rio was officially postponed to September 2022. The president and creator of the event also said that by the end of this semester it should reveal more attractions (perhaps Coldplay?)
Heres what I've noticed. They released Litho's of every album, and now have released cool Shirts/Socks for each album. If Music of the Spheres is about the connection between all bodies, then this could be a nod to the album. Just another reason we know that we've got something coming.
It won't be. It's not a glitch and it applies to every auto-generated music video on YouTube (although some have been abandoned, so some will unofficially keep the comments section - some even have the old layout!).
If comments don't return... luckily I screen-captured one from last year that I thought was beautiful. I also found a quote that someone shared on my Discord.