Sergei Vasilievich Rachmaninoff was a famed Russian piano composer, whose primary goal in life was to make piano players really fucking pissed off by making his music as unplayable as humanly possible. He claimed to be a pianist himself, but all he must have played was some easy shit like "Chopsticks" or "Mary had a Little Lamb". Seriously, if he had any actual knowledge of playing piano, he would have arranged his music in a way that was actually readable, as opposed to the messes he composed. Either that or he was on shrooms when he wrote them. Or both.