RELEASE November 13, 2013 CONTACTS: Janelle McCoy, Executive Director Mendelssohn Club of Philadelphia 215.735.9922 Edward McNally, Above The Fold 404.281.6419   Metropolitan Opera Soprano Karen Slack Joins Philadelphia’s Beloved Symphonic Chorus for “Feast of Carols,” A Concert of Holiday Favorites, Sacred Music and New Works by Composer Donald St. Pierre Later in December, Mendelssohn Club […]