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I think Genghis Khan is one of Maiden's most programmatic songs. When I listen to Transylvania, I don't really envision vampires, but when I listen to Genghis Khan I can totally envision Genghis and his army riding into battle. With the steady gallop of the opening with the high speed riffs signaling the beginning of the battle. It's an early instance of Maiden telling a story through music and they're already pros at it.