Upload ripped song to Apple Music all my devices?

I imported a song from an old CD into Apple Music on my iMac's Music App. How do I get it so that the app, the cloud, gets to all my devices? This song is not in Apple Music's store. iTunes is now totally gone from all OS's. This song does not seem to get to my phone automatically, it is just sitting in Music on my iMac only. So, what do I have to do, to get it on all my devices?