keys i'm not familiar with the piece myself so am not fit to make edits but i notice that the discussion of the first movement includes mention of some very outlandish keys like d flat minor d sharp major and f flat major all of which while touched on occasionally in fleeting chromatic passages are very unlikely to be a piece's true modulatory goal i suspect that someone who thought it would be funny has added these in if i am wrong in this suspicion and the piece really does go to all those unnecessarily heavy keys ignore this comment