It is said that in the 1950s, a musician named Boris Karlov (not the Frankenstein guy) was the first to spice up Bulgarian folk music with some accordion. This obviously affected Kristin Anna Valtysdottir, founder of Iceland's prized electronica outfit Múm and accordion player for Storsveit Nix Noltes, a near-baker's dozen of accomplished musicians who play dense, ornate Bulgarian folk music. On Orkideur Hawai, on which each track name is more or less a series of consonants with little time for vowels, jumpy Eastern European folk music is dealt in momentous thrusts of strings, brass and varied percussion. An epiphany surfaces in the multitude of guitar notes that diligently chase around the spastic fiddle melodies of "Svatbarska Rachemitsa." Orkideur isn't indie flash-in-the-pan mimicry of an authentic art form, it's an earnest, exhilarating representation.