I try to find out if a song is royalty free to use for video of a client.
How can I find this out?
Best answer by Mathis
On web, you can filter by license actually. Once you've done your initial search (for the sake of simplicity, I've just searched for "test"), you can choose "tracks" on the left column, then click on the item that says "to listen to", then adjust the filter. :-)
Still, though, we highly recommend to always reach out to the uploading artist via personal message and ask for permission.