OpenGameArt.org
No Country For Old Alex
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"No Country For Old Alex" by Pro Sensory licensed CC0: https://opengameart.org/content/no-country-for-old-alex Author's attribution notice: If you download and use you could be eligible for a shout out on my YouTube Channel.
Where to put it: Game credits or video description. If the entry has a "Copyright/Attribution Notice", follow that.