WEST GARDINER — Grace Christian Academy is sponsoring a concert featuring the Blackwood Brothers Quartet from Memphis, Tenn., at 7 p.m. Tuesday, Aug. 19. The concert will be held at Grace Community Chapel, 187 Lewiston Road, just off I-295 and the Maine Turnpike. The quartet, that sings Southern gospel music, will perform old classics and new songs. The concert is free, though a love offering will be taken. For more information, contact Shirley Coffin at 621-0657.