Do I need to have a license before releasing my song on Soundcloud/Youtube etc.? Yes. As soon as your song with samples from Tracklib tracks leaves the studio, you need a sample license. Related articles When (and why) do I need to get a sample license? Do I need to send you my new song? Do I need a license to pitch a beat or an instrumental? How do I release/distribute my music? I just got a sample license - what do I need to do?