Wielding a voice that defies the size of her body, Emilia Dahlin will perform at 7:30 p.m., Saturday, May 5, at the Village Coffeehouse of New Gloucester, 19 Gloucester Hill Road. Dahlin combines her strong storytelling sensibilities with raw, rootsy folk and jazz vocals to create mesmerizing tales of epic proportions. Her weaving of a historian’s imagination with a troubadour’s artistry offers an American original sound that blends vintage jazz, the tang of a Tom Waitsian waltz and the somber grit of a low tide lullaby.