I have a folder of period marches that I listen too that is spaced out for about the time it takes to make a move in turn order. There is nothing like doing the German moves while Panzerlied is blasting on the stereo.
As far as the options I voted for Classic Rock which could have easily been Hard Rock and much of the latter is now considered part of the former. To a person of my age Classic Rock means early Rock and Roll which I do listen to and not stuff from the '60s or '70s again which I listen to. My other choices were Bluegrass and Blues. I think I can honestly say I have heard very few groups from the last 2 decades that I thought were worth a flip and see no reason to listen to inferior (in my opinion) music merely because it is new.