Laudator Temporis Acti

Bruce Catton (1899-1978), Mr. Lincoln's Army (New York: Doubleday, 1952), pp. 173-174:

It is recorded that during the long winter after the Battle of Fredericksburg, when the two rival armies were camped on opposite sides of the Rappahannock, with the boys on the opposing picket posts daily swapping coffee for tobacco and comparing notes on their generals, their rations, and other matters, and with each camp in full sight and hearing of the other, one evening massed Union bands came down to the river bank to play all of the old songs, plus the more rousing tunes like "John Brown's Body," "The Battle Cry of Freedom," and "Tramp, Tramp, Tramp, the Boys Are Marching." Northerners and Southerners, the soldiers sang those songs or sat and listened to them, massed in their thousands on the hillsides, while the darkness came down to fill the river valley and the light of the campfires glinted off the black water. Finally the Southerners called across, "Now play some of ours," so without pause the Yankee bands swung into "Dixie" and "The Bonnie Blue Flag" and "Maryland, My Maryland," and then at last the massed bands played "Home, Sweet Home," and 150,000 fighting men tried to sing it and choked up and just sat there, silent, staring off into the darkness; and at last the music died away and the bandsmen put up their instruments and both armies went to bed. A few weeks later they were tearing each other apart in the lonely thickets around Chancellorsville.