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 leaves the studio, you need a sample license. Related articles Do I need a license to pitch a beat or an instrumental? When (and why) do I need to get a sample license? I just got a sample license - what do I need to do? How do I register my new song with BMI? Can I get another license deal than the one you have?