The sound comes from Five Nights at Freddy's 2, released in 2014 by Scott Cawthon. In the game you must keep the Marionette's music box wound up using the cameras, or the Puppet leaves its box and ends your night. The tune is based on the traditional lullaby My Grandfather's Clock. Fans ripped and shared the loop across YouTube and soundboards, often pairing it with the FNAF jumpscare scream for edits, and it remains a shorthand for creeping puppet horror in FNAF memes and fan games.