Warner does a beautiful plaintive a capella piece on Bull Run that I wil never forget. It has only four lines and is sung naked and raw (the voice, 'spaw, the voice!):
This day will be remembered by
America's noble sons.
If it hadn't 'a been for the Irish, what would the Union done?
It was hand to hand we fowt 'em, all in the broiling sun.
Stripped down to the pants, we did advance
At the Battle of Bull Run!