As far as I know it shouldn't. The embedded code is allowed on myspace considering there were issues with playlist.com.
You can read more about the block
here.
As far as loudfusion's music goes, they don't allow you to link to your own content instead they use it from external websites. Where you can search them
here.
As I stated though I'm not sure, I would imagine any trouble would be directed to loudfusion themselves, however you can take a look at their
terms of service.