OpenGameArt.org
Ethereal Gospel (Full Soundtrack)
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"Ethereal Gospel (Full Soundtrack)" by Trevor Lentz licensed CC-BY-SA 3.0: https://opengameart.org/content/ethereal-gospel-full-soundtrack Author's attribution notice: Please credit me "Trevor Lentz" if you choose to use this. :D
Where to put it: Game credits or video description. If the entry has a "Copyright/Attribution Notice", follow that.