Played this in the mid-80s in St. Louis Missouri USA. We played to the song: In Out Side Side On In Out ("out" meaning straddling the elastic). We called it Chinese Jumprope and did not have special songs, just the directions. But we had different "levels" like skinnies and eyes-shut and typewriter and diamonds. It seemed like it had been handed down as Gospel Truth when I was in 3rd grade...but many of the levels were probably made up to keep the game going!