If you are trying to promote your music you should look into this.
On this website you can promote your music. You give and receive comments on tracks posted on SoundCloud. So you mutually benefit from this. For your efforts you get awarded points. The more points the more your track will be pushed to other users. Further, you can also get professional help of many sorts (pr, management, design, reviews, etc.).
Curious? Interested? – Check it out: