Many musicians put their tunes on Pandora in the hopes that they'll build an audience, but how are they supposed to know it's working? That's what the streaming service's new Artist Marketing Platform (AMP) aims to solve. The initiative gives performers data on not just how many plays and thumbs-up ratings their songs get, but the demographics of who's listening and where the music is taking off -- very handy for planning a national tour. It won't guarantee that your indie band catches a big break, but it could help you focus your musical talents where they matter the most.
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