Katelyn Emerson performs an organ concert, 4 p.m. Sept. 17, St. Anne Catholic Church, 450 E. Washington Avenue, Bethlehem.

The concert includes the premier of “Partita on ‘St. Anne’” (“O God Our Help in Ages Past”) by Michael Bedford, commissioned by the Lehigh Valley Chapter of the American Guild of Organists for its 100th anniversary.

The concert is free and open to the public.

Information: http://lvago.org/