The 200-voice Warren County High School choir and a dramatic narrative of the remarkable Christmas truce in World War I will be among the locally originated radio specials this week on WCPI 91.3.Other seasonal programs will include a celebration in music from the historic Liberty Cumberland Presbyterian Church and a festive holiday concert by McMinnville’s Silver & Gold Band. And the weekly news and documentary program “Focus” turns its attention to the nativity as three local church leaders share their thoughts on the spiritual dimensions of Christmas.The WCHS choir, whose “Sounds of the Season” concert Thursday night was recorded for the WCPI broadcast, has grown to some 200 student members after its creation just three years ago under the direction of music teacher Kennette Dixon. The program will feature a number of solo singers, as well as the entire ensemble.Exactly 100 years ago this week, as warring nations of Europe settled into a bloody stalemate in the early months of The Great War, officers and soldiers cautiously crawled out of their muddy trenches and ventured into the killing zone that separated them.