You can easily share your music from SoundCloud as a widget in a text box, comment, or blog post. To add it to your My Page, just look for the Text Box. Share an individual song or your entire playlist.
When logged into SoundCloud, copy the embed code for your entire playlist
Or copy the embed code for a single song
Paste the embed code in the Text Box on your profile page
To embed on a comment wall or blog, click the Media button (3rd one, looks like a film reel) or the "HTML" button on the menu bar and paste the code.
Customize the description around it as you like, then click "Save" or "Add Comment"