It sounded to me like something an emergent AI might do as a first stab at creativity. Or a suicide attempt, whichever.
Anyway, yall should check out this guy's channel if you're curious, it's full of insanely over-notated renditions like this. Not 100% sure I agree with him and others calling this stuff a genre in itself, but that's a pedantic battle I haven't leveled up for. It's interesting stuff at least.