Paul Gordon's musical version of Emma, which Bay Area audiences turned into TheatreWorks' highest-grossing production in its 38-year history, continues its merry matchmaking.Cincinnati Playhouse and The Repertory Theatre of St. Louis are co-producing Emma, and TheatreWorks founding artistic director, Robert Kelley will be at the helm, just as he was for the Mountain View production.The show, based on the Jane Austen novel, is at the Cincinnati Playhouse Sept. 2 - Oct. 3 and at The Repertory Theatre of St. Louis Oct. 8-Nov. 2; several cast members from the TheatreWorks world premiere are expected to reprise their respective roles.