The melody comes from Titanic, the 1997 film whose love theme became one of the most recognisable tunes in popular culture. Flute arrangements of that theme have long circulated online because the instrument suits its slow, soaring line, and short clips are easy to drop into videos, streams and soundboards. This version, shared under the name Flauta Titanic Kassino, follows that pattern, offering the familiar tune without vocals. Its continued use comes from instant recognition: listeners know the reference within a few notes.