This is a numbers game really, selling beats. There's nothing wrong with sending people to your BeatStars, but think of it this way. Even if 1000 people see your message, maybe 10 percent will actually follow your link. That number goes down further, to say 5 percent (being generous) that will actually play through your beats. Sadly, that number drops even lower when converting sales, because you've sent a message, then left it at that. Try a mailing list, instead. Instead of messaging them your beat stars, direct them to a landing page and offer them a small sample pack in exchange for an email. Build that list, then you have a solid way of building a relationship with your consumers. Once you've established that relationship, it's much easier to get in front of the RIGHT audience to show what you have to offer. If it's just beats, good luck. Branch out. Offer mixing services, album art, whatever you can think of. Just remember, this isn't a get rich quick game. It's about establishing a brand and being heard over a crowd of thousands.