local file wont download to my iphone

[grimslabben]

Hi, on my computer (using mac osx 10.9.5) only 3 of my local files sync to my phone. When I try to remotecontrol spotify on my phone form the computer a i get a message on my phone if I try to play any song for my local files (except the 3. songs that are downloaded on my phone) it says Song not Downloaded. If you one the song, you can sync it form your computer. 

The song in question is a free song for the band Bobben Rolls Brennevinstrio. that I downloaded free form the bands home page.
Its a basic MP3 file, and I can play it in spotify on my computer, but it docent aped on my phone..