LANCASTER COUNTY, Pa. - REVIEWI do not believe I have ever encountered a folk album that has given me the urge to headbang. However , the highly acclaimed Swiss folk metal band Eluveitie's "Evocation I — The Arcane Dominion" has somehow managed to do just this.When I first heard that one of my favorite bands had recorded a new album, I was elated. Upon discovering that the new album was strictly acoustic, my elation was coupled with curiosity and slight suspicion. It seemed like it would be difficult to make an entire acoustic folk album ...

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