OpenGameArt.org
Style of Harp
Credit line
"Style of Harp" by Umplix licensed CC0: https://opengameart.org/content/style-of-harp Author's attribution notice: You do not need to credit me, but if you do, call me by my username.
Where to put it: Game credits or video description. If the entry has a "Copyright/Attribution Notice", follow that.