A similar question, I am using the link from gamejam https://freemusicarchive.org/ When I post on YouTube I get a copyright claim. Here is an example https://freemusicarchive.org/music/gigakoops/please-bring-peace-to-the-village-o... It has this link https://creativecommons.org/licenses/by-nc-sa/4.0/ Guessing
"NonCommercial — You may not use the material for commercial purposes."
is why YouTube gives a copy right claim, but just want to make sure these tracks are OK to use for the gamejam.