Experience the power of singing gospel music with more than 250 others as part of the Arlington-based Mystic Chorale, led by award-winning director and composer, Jonathan Singleton.  Mystic Chorale is a non-audition, non-profit, volunteer-run community chorus. The ability to read music, while helpful, is not required.  Its motto is, "We welcome all who love to sing!" This season the chorus will sing a diverse mix of spirituals, traditional and contemporary gospel, all united by themes of love and hope. The…