If you invite a friend to Tracklib that's not already a user, the person invited will get a specific free track! Once they've signed up, you'll get one credit which you can use to purchase any track for free. You can invite as many friends as you like, each of their sign ups will earn you one track credit.
Remember to tell your friend to use the sign up link with your invite key. Just copy the link from your referral page by either going to Profile, then referrals and from there use "Copy link". Or share it directly via Facebook or Twitter. You can also invite a friend by email.
If you have any questions, please contact Tracklib support by emailing email@example.com.