If I post a Spotify song, can my friend with Apple Music hear it?

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 support@cymbal.fm with the full details.

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