If I recall most of the music was random Classical music they just cut into bites, and then played them in strange orders, while also using strange time keys (I know nothing of music theory but there are a few that are inherently off).

Which really adds to the wrongness. There is an amazing musical track in there we probably recognize, but its now distorted.

Its the same with the Queen Beast song, which is just a single underlying piece with the Black and White sounds overlapping and playing in random orders over and over to make what might be music.