The music on this site is all free to download. But the license says you gotta add this link to your project description:
Music by John Bartmann http://johnbartmann.com
If you can’t or don’t want to credit me, you’ll have to get a license for this track. Just $5 for some almighty publishing freedoms.
Alternatively, contact me directly for any usage queries
Thanks for helping me out, and have a musical day!
— John Bartmann