Well I can't dance to anything, but I love to play History Man on the harmonica in idle moments. It's a lovely, unpretentious tune. Careful with that beginning, as you imply! Way back in the 90s we heard Chris Wood and Andy Cutting play it lots of times live, when they followed it with their distinctly gentle and non-bluegrassy version of Roseville Fair - gorgeous. I recall Chris Wood once complaining that too many folkies played mazurkas as though they were just fast waltzes...