On a more serious note, if that project was ever taken at face value, that is as a collection of music and not as a piece of mathematical performance art exploring the theoretical boundaries of copyright, they'd get into quite some trouble: somewhere on that drive there's a copy of Strawberry Fields, perhaps even the Happy Birthday song, and we all know what that means.
Not to be pedantic but at least this one was finally put to rest in 2018, in the US that is. And it's EU copyright expired in 2017 [0].
Copyright law is crazy but every once in a while a legal case comes along and injects just a tiny bit of sanity back into an otherwise insane system...
[0] https://en.wikipedia.org/wiki/Happy_Birthday_to_You#Copyrigh...
In Katie Perry's case it was claimed because the Youtube video of the accuser was viewed 3M times on Youtube she could not say she never had access.
An algorithm can't have access, so imo both parties would own the copyright (if an algorithm can own a copyright)