White Knuckle Stroll by Casey Cangelosi 

shorty with the red hair was feeling bro😭

Ignorant

Its very possible to do this solo at that speed, despite requiring practice. Also, as far as I can see, there is no indication of being sped up - especially the sound. The sound has the normal resonance duration, for a marimba. If it was sped up, the marimba would not resonate for as long.

any normal person should know what it looks and sounds like when something is sped up imo and this isn’t sped up