The different variations are labeled with letters instead of the traditional numbers. There are some that deviate pretty far from the original theme, but I tried to maintain the tonality of it. Letter H is a minimalist approach. Letter I is an attempt to turn it into a waltz style. And there is one (can't remember the letter right now) that is a bit of a musical joke (it's When Johnny Comes Marching Home in the form of a funeral march).