Can I play music downloaded via Apple Music on a laptop that doesn't run iTunes

This would go for basically any old computer. I routinely bring my Surface with me when I travel (I'm a truck driver) and don't often have it connected to the internet. I have an extensive mp3 library that I've accumulated over the last ten years or so which takes up most of my HD space, and this is my usual method of listening to music on the road. If I subscribe to Apple Music, and download songs through that service, will my older RT tablet (which isn't compatible with iTunes) recognize the DRM protected status and refuse to play the songs? Remember it is not often connected to the internet on the road.