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 Do I need a license to pitch a beat or an instrumental? Do I need to have a license for each track of a song? Do I need to send you my new song? How do I register my new song with BMI? How do I transfer ownership of a sample license?