I recently got my first apple product ever an Iphone 6s and I'm doing the Apple Music Trial. I put itunes on my laptop and added all my own music that isn't available on apple music that is drm free to itunes. When I go to music on my iphone it is downloading all my music automatically, but I don't want this since I only have a 16gb Iphone so I don't want all my space going to music. In Itunes how do I choose what music for it to download locally to the iphone? Also, if I now put Itunes on my desktop will it automatically download to that computer the drm free music I added on the laptop itunes? Note all the drm free music I added was music that apple music doesn't offer, if it was on apple music already I didn't add it. So is it downloading that drm free music on my desktop or does it play it from the cloud? How does this all work?