Duenser's controlled, nearly plainsong voice stands in such contrast with the aggressive riffing of the guitars it's nearly a paradox, it's 180-degrees on the other side of metal's harsher side.

Bloodangel's Cry
by Krypteria

Lemuria / Sirius B
by Therion

Blue Play
by Passionworks

Suspiria
by Darkwell

We Will Take You With Us (2 Meter Sessies)
by Epica