sentences:  When the Ethical Society relocated to St. Louis County in 1964, The Sheldon became primarily a music venue.Then, in 1974, a former singer with the Duke Ellington Orchestra purchased the facility, transforming The Sheldon into a church and the site for many jazz and gospel concerts.A California attorney with a love for chamber music purchased the building in 1984 at the urging of the Paganini String Quartet.