OpenGameArt.org
Aerobics Synth Wave
Credit line
"Aerobics Synth Wave" by Pro Sensory licensed CC0: https://opengameart.org/content/aerobics-synth-wave Author's attribution notice: Include my name, Alex McCulloch. This is not mandatory. Please message me if you use on your projects. I post music for free on here for my resume and would like to put your game on my resume.
Where to put it: Game credits or video description. If the entry has a "Copyright/Attribution Notice", follow that.