Dr. Jeffords sang with the Atlanta Symphony Orchestra Chorus at Carnegie Hall on October 27, 2012. For over a century, Carnegie Hall has been the performance pinnacle for musicians in the United States. The Atlanta Symphony Orchestra and its acclaimed Chorus has often been the guests of the New York City iconic hall. The performance included 2 choral performances (Bernstein's "Chichester Psalms" and Walton's "Belshazzar's Feast"). The orchestra and chorus received four ovations. Dr. Jeffords has sung with the Atlanta Symphony Chorus from 1981-86 and from 2000 to the present.