It seems so easy. Take some folk, mix it with some metal, add some tribal-this, some ethno-that, heat until fused and ta-da!–awesomeness. But as Finntroll, Korpiklaani, Moonsorrow or even the relatively rougher Eluveitie prove in endless genre-mix soufflés, things usually collapse under the weight of whimsy, uneven beauty/beasting, or heavy-pretense (yes, I’m thinking of the new Agalloch‘s tendency to meander, or Swan‘s pointlessly […]