Don Verkuilen, director of music and musical arts at the Old Stone Church of Cleveland, Ohio, will play the dedicatory concert of the antiphonal organ on Friday, Nov. 17, at 7 p.m. Don studied at the Oberlin Conservatory of Music under James David Christie and Jonathan Moyer. He has also studied performance and improvisation with Marie-Louise Langlais, the widow of the famous composer, Jean Langlais. The first half of the program will be played on the antiphonal organ, and the second half on the main console in the chancel. The antiphonal organ, built by Nichols and Simpson of Little Rock, Arkansas, was given to Grace-St. Luke’s Church by Betty and George Johnson in celebration of the 75th anniversary of the merger of Grace and St. Luke’s churches. The concert is free, open to the public, and a reception will follow in the Trezevant Hall.