Any song that is not considered a 'Premium song'. You can most easily spot these by looking for songs with a pink 'P' icon next to it. You can choose whether or not to include these songs in your search by checking or unchecking the 'Include Premium Songs' box toward the top of the song filter. Premium songs are only available for use with wedding/life event use and are an extra charge of $25/song/usage. Currently, the songs included in your membership are available for use Worldwide. The Premium songs are only available for use in the U.S., but hopefully will be expanded to Worldwide soon. If you're only interested in the Premium/Mainstream songs and live outside the U.S., please go ahead and register for a Free Video Account and then you'll be on our list to learn when these songs become available Worldwide. That said, with over 10,000 indie and cinematic songs available, you'll probably find something you love that's included with our full membership. One more thing, the songs included with your membership can be used in videos placed on any video hosting site, but videos using Premium songs can solely be hosted on Fyrfly, Facebook, Instagram, and/or YouTube (of course the links can be shared anywhere).