OpenGameArt.org
[Music] Hollow Fragment
Credit line
"[Music] Hollow Fragment" by darkagent licensed CC-BY 3.0: https://opengameart.org/content/music-hollow-fragment Author's attribution notice: This Music released under CC-By 3.0 License. So basically you can do anything with this asset as long as you give credit to me (Arbiyan)
Where to put it: Game credits or video description. If the entry has a "Copyright/Attribution Notice", follow that.