SCRANTON — “Oh, where are our dear mothers?” the song asks. “Where are our dear sisters?” “Some have gone to heaven shouting,” it continues. “Some are in the valley praying.” And some are in the Voce Angeli choir singing “Bright Morning Star,” with words handed down in Appalachian-style oral tradition and arrangement by present-day composer Joan Szymko. As they prepare for “The Strength of Women” concert, set for Aug.