Well, the one song that did not have any classical affiliation at all, is Rökkurró - Svanur.
I do not listen to much "original classical", but I do know what it is, since my mother raised me with music by (mostly) Chopin, Bach and Monét. I just don't like the sheer aggression in the music, to me, it seems 20x more aggressive than raw black metal.
I just listen to a lot of classical sub-genres. If Ludovico Einaudi isn't contemporary classical, or a minimalist, then let me know. If Araxas' symphony-parts isn't a kind of classical, then let me know. D2jsp doesn't allow me to call this topic: "Umskiptar's Contemporary Baroque Symphony Minimalistic Post-rock-inspired Medieval classical thread".
You could put a guitar into classical as well, just listen to Gris - La Dryade.
Enough, genres to me, is just another meaningless label, only made to shape discriminating preferences for naive people.