Battle Cry of Freedom :blink:
Yes, I know it is a peculiar kind of choice of music, coming from somebody who professes (sincerely) his abhorrence of war. When working on a final university work dealing with the US Civil War the songs from that time can work as kind of a stimulator though (and with most of them being cheerful marching songs they also work to set a quick pace to your work).
Seeing it is Christmas time I might want to start "Maryland my Maryland" instead which is actually played to the tune of one of the most popular Christmas carols over here "O Tannenbaum".