: Sometimes the original creator's name or a title is hidden in the file's properties (Right-click > Properties > Details on Windows).
If you can (e.g., the instruments being played, the setting, or any lyrics), I can help you identify the "long piece" you're looking for! VID-20221105-WA0179mp4
If you have the video file and are looking for the name of the "long piece" of music or the source of the footage, here is what you can do: : Sometimes the original creator's name or a
: Take a screenshot of a clear frame from the video and upload it to Google Lens or Yandex Images . the instruments being played
: Play the video out loud and use the Shazam app or ask "Hey Google, what song is this?" to identify the music.