Korobeiniki

"Korobeiniki" is a nineteenth-century Russian folk song about a meeting between a peddler (korobeinik) and a girl, whose haggling over goods stands in for seduction. Outside Russia it is widely known as the Tetris theme. The game's arrangement differs slightly from the folk song; The Tetris Company has required it in every version of the game since 2002 and holds a sound trademark on it for use in video games.