You may register songs with AllTrack that contain embedded copyrights (i.e; samples, translations, interpolations), however it is your responsibility to obtain explicit permission from the original copyright holder(s) for this use. If your song contains embedded copyrights, please select the checkbox that reads "This song includes 3rd party content. i.e. Samples or Translations" during the song registration process.
You can register songs by logging into your AllTrack account here.