This clip is best understood as a generic creepy lullaby sound rather than a clearly identified quote or soundtrack extract. Short lullaby-style audio has been widely used across horror edits, TikTok slideshows, and suspense memes because it creates an immediate contrast between innocence and fear. That childlike melody is a familiar horror device in online video culture, especially in ghost, doll, and abandoned-house content. Creators keep using sounds like this because they signal dread quickly without needing dialogue, making them useful for short-form edits and atmospheric transitions.