If your not concerned with monetizing your YouTube channel then you are allowed to use a lot of 'copyrighted' songs/music. As long as you are not profiting from their work a lot of artists don't seem to mind. In your video description you should add an attribution by naming the song and the band/artist. Not all songs mind you - you can't use certain artists music - e.g. AC/DC and a few others will block you. The worst that can happened is that you have to re-upload your video with different music track. 🎵🎸 Have fun - happy flying.