This “lesson” is intended for those people who have decided to study the art of video editing.
“Commercial music” differs from regular music not only in the fact that you can buy it for commercial projects, but also in the fact that its structure allows you to create a track of the desired duration. And it will sound natural.
It can work in any music, but you will not always get the desired result.
For a more detailed study of this technique, you can find a lot of detailed information on the Internet. Good luck.