Gail Archer, an international concert organist and recording artist, will perform an organ concert at Zoar Lutheran Church on Saturday, November 12, at 7:30 p.m. Featuring Zoar’s versatile Rogers-Ruffatti organ, Ms. Archer will share musical selections from Bach, Brahms and Ukrainian composers Goncharenko, Ostrova and Kolessa. A free-will offering will be collected. Ms. Archer is college organist at Vassar College, director of the music program at Barnard College, Columbia University, where she conducts the Barnard-Columbia Chorus and Chamber Singers and is a faculty member of Harriman Institute, Columbia University.