There is no documented source for this particular tune; it arrives as an anonymous upload labeled only 'Tune', which is common on user-run soundboards where short melodies are shared without credits. Clips like it circulate because they are handy: a few seconds of wordless music with no licensing paperwork attached. Over time, small tunes like this get picked up by hobby editors who need something quick for intros and transitions, and their continued use has less to do with any original release than with how easy they are to drop into a timeline and loop without drawing attention.