Part of my work at the moment involves making videos and sometimes I need to overlay music as part of that. This brings up copyright issues which are pretty time-consuming to work through. It is hard to find music which can be used online but it needs to be done. First, there is the artist to think about. They need to eat. Second, it does not look good for the organisation you work for to receive lawyers letters in the post. Thirdly, even if you don’t care about the first two, video platforms such as YouTube will delete your video if their technology senses that you are using copyrighted material.
Thankfully, the internet is good. There are plenty of sites that provide creative commons material for use in video. Just be careful that you check the license involved is not a No Derivatives License. This means that you cannot make changes to it, and syncing it to video is classed as a change. Once you find some suitable audio, it is suggested that you credit the artists on the video.
Here are some of the sites that I found useful for finding free music that did not break any copyright laws.