Musical chairs is a game played by a group of people (usually children), often in an informal setting purely for entertainment such as a birthday party. The game starts with any number of players and a number of chairs one fewer than the number of players; the chairs are arranged in a circle (or other closed figure if space is constrained; a double line is sometimes used) facing outward, with the people standing in a circle just outside of that. A non-playing individual plays recorded music or a musical instrument. While the music is playing, the players in the circle walk in unison around the chairs. When the music controller suddenly shuts off the music, everyone must race to sit down in one of the chairs. The player who is left without a chair is eliminated from the game, and one chair is also removed to ensure that there will always be one fewer chair than there are players. The music resumes and the cycle repeats until there is only one player left in the game, who is the winner.