One casually added track can take a video down. What to check.
A single piece of music carries rights in the composition and lyrics, and separate rights in the specific recording of it. The same song therefore needs different permissions depending on which recording you use. Buying a track to listen to and putting that track into a published video are entirely different questions.
Music offered free almost always comes with conditions: credit the source, no commercial use, no modification. Break the condition and the right to use it free disappears with it.
Major video platforms scan uploads against a music database. A match can redirect revenue to the rights holder, block playback in certain regions, or take the video down entirely. Repeated matches accumulate penalties on the account. There is no rule that a short clip is safe.
Using the platform's own music library is the simplest. Subscription music services for creators exist too, though you still need to check what the licence covers. Making the music yourself, or getting permission directly from the rights holder, also works.
Performing someone else's song yourself still leaves the rights in the composition with its owner. Platforms sometimes have agreements that permit this, but it varies by country and by song. Playing music in a shop or at an event can require a separate process again.
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