Yes! If you invite a friend to Tracklib that's not already a user, the person invited will get a free trial, with 15 free download credits. If they start a paid subscription plan, you'll get 50 free download credits.
You can invite as many friends as you like, and each of their signups will earn you 50 track credits.
You get to your referral page by clicking on 'Get 50 Credits' from the drop down menu. From here you can enter the email address of anyone you want to invite, as well as automatically share your referral link on your Twitter and/or Facebook.
You can also see the status of your referrals at the bottom of your Setting page. Remember that you will only get your free credits when your referral starts a paid subscription.
If you have any questions or issues, please contact firstname.lastname@example.org.