It has literally taken Skinner years to perfect playing Danse Macabre (http://www.youtube.com/watch?v=WzxK027Sxeg), and decades of practice to keep it up. As he delves into the grim, frenetic song, it's easy to see why it requires so much practice: fingers flying across the keys, over each other, not unlike a more graceful version of a keyboardmash. The usually easygoing Skinner is now fully concentrated on the song he's playing (naturally; even a millisecond of not paying attention might cause his fingers to fly off the keys and crash into the nearest tree, or whatever in-bar stands in lieu of a tree).

He manages to make it through the song without any major mishaps. Thank heavens for that.