If I post a Spotify song, can my friend with Apple Music hear it? ← FAQ Yes! It works the other way around, as well. We built a matching algorithm that matches songs from both services so that no matter what service you have, you can listen to full songs. Our algorithm isn't fool-proof though! If you notice something odd, or notice that a song plays a preview when it should be playing fully, please email email@example.com with the full details.