Organ virtuoso Gail Archer will present a concert of solo organ works at St. Bartholomew's Church on Sat., Feb. 12 at 7:00 p.m. Archer is professor of music at Columbia University and Vassar College. A pre-concert talk at 6:30 p.m., given by the performer, is open to all. No tickets required, but a freewill offering will be taken ($10 suggested).