Hello Dangar, absolutely you can. Don't worry about it. As a creator I gave my permission to download my music with the stated price (in this case for free or with a small donation) and use this licensed audio content in commercial or non-commercial projects. I have no time nor interest to object to this arrangement. I appreciate your message and your willingness to credit me. I'd appreciate seeing your final work (please email to benesch.boris@gmx.de), so that I can refer to it for future projects with other clients. Please also consider following me on itch.io, spotify or other media if you want. Keep in touch and have fun with my tracks. ^^