: Play the video out loud and use the Shazam app or ask "Hey Google, what song is this?" to identify the music.
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!
This filename format is typical for videos shared via (VID-YearMonthDay-SequenceNumber). Because these files are usually private or shared in closed groups, they aren't indexed by search engines. 🎥 How to Identify the Content
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 title is hidden in the file's properties (Right-click > Properties > Details on Windows).