Adding your SoundCloud is very easy. Once you've retrieved your widget code from SoundCloud, simply copy and past your code to the "Add Widget" section on your site. Shown here:
When your code is pasted into the entry field, make sure to turn your widget "On" before saving your work.
Instantly you will notice your SoundCloud player visible on your site.
Finally, all you have to do is click "Publish" to push changes to your site.