The point is: I have no desire to pay $120 a year to listen to my own music. So using "Apple Music" is not the answer.
However, this is the answer. If you want to listen to your own music in iTunes and bypass the "just because" fee of $120 a year, you sync your phone to the computer and turn Home Sharing on.
Sync the phone. Basically, you connect the phone via a usb to i Tunes. The steps are online.
Then, you set up Home Sharing.
Then, you can access your playlists. But you need to leave the iTunes On, on the Computer so "home sharing" works. That's another hidden step you won't find on any of the "just simply" do this answers.
If you want to shuffle your songs, you can turn that on but it will shuffle all your playlists including Holiday songs and Barney the Dinosaur, for example.
So, you go into the Internet rabbit hole and find out how to turn specific tunes off. it's there. Pretty easy though. Has to do with going to the specific songs (or you can do a shift all in a playlist), choose "Get Info" and hidden other options there is a box you can check "not include" ...
Or .... after I did all that, I realized it's probably a pain in the butt now to go back in and turn those all back on ... so I would recommend you can create a Genius Playlist. Just put your tunes in there that you want to most often shuffle. You can create a "jazz" or "classical" or "dinner" or whatever ...
In the end, you learn something, you create a work around from paying yet another fee to listen to your own music. It's not just Apple; they are all designed to give just enough information to suck you into "just simply" paying. Have you ever tried to find out what you would be paying for - on anything internet related - prior to giving up your email, phone number, IP, etc to "try for free?" Then, good luck removing it if it sucks. If you want to stream something, and find this is too hard, pay the $120 a year (or $240 if you bundle with the tv).