By Debbie Hall Four accomplished Las Vegas musicians explore Scandinavian melodies, American folk music and contemporary compositions in an afternoon concert celebrating the connections between musical heritage and artistic expression. When classical technique meets the untamed spirit of folk music, unexpected harmonies emerge. Fiddle & Fern explores that creative intersection with Rooted, returning to the Rita Deanin Abbey Art Museum from 2 to 4 p.m. on Saturday, Oct. 24, fo