The director of the Barnard College Music Department and the Barnard-Columbia Chorus, Gail Archer is particularly famous as an organist. Tune in to Friday's Bach Hour for an exclusive interview on her recording of the Great 18 Chorale Preludes, as well as for her upcoming appearance leading the Barnard-Columbia Chorus in the St. Matthew Passion. During the broadcast, there will be a ticket giveaway for the concert, which occurs at 8:00 PM on Friday April 24th at The Church of the Ascension (221 W. 107th Street). Stepan Atamian hosts.