Actually, this sounds precisely like my sister's taste in music. If that pattern holds, you may be interested in European symphonic metal--Nightwish, Within Temptation, Kamelot, bands like those. (Actually, I'll be going to see Kamelot and Dragonforce co-headlining next April.)

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this world created by the
hands of the gods
everything is false
everything is a LIE
the final days have come
now
let everything be destroyed

--mu