I’ve been going around in circles with Apple Music. I have a family subscription, and I have many hundreds of CDs imported to my laptop. I’m running Ventura 13.6.3 on an M1 MBP, and 17.3.1 on an SE3 iPhone.
- I have copied no songs to the phone from the Mac.
- On the phone, I have Cellular Data on, Sync Library on, Add Playlist Songs on.
- On the Mac, I have Sync Library on, and “Add songs to library when adding to playlists” is checked.
Ok, now that’s out of the way. I make playlists on my phone, and I may have made some on the Mac too, but it has been a while. I used to make them from my personal library, but that seemed to cause some interference with the Music subscription function, so I now only make my playlists from AM. I may search out a particular song and add it to a playlist, or sometimes AM suggests a song for me, and I like it enough to add to a playlist. This only works sometimes. I can play a song and then add it to a playlist. It will always show up on the list, but may or may not be grayed out. There appears to be no rhyme or reason to the grayed out status. These are all common songs. Some already exist in my library, some do not. That has no bearing on whether or not the song gets grayed out.
When I tap the grayed song title, I get the entirely unhelpful message, “This song is not synced across your devices. On your Mac or PC, go to Apple Music or iTunes for Windows and in Settings, select Sync library.” I’ve already done that.
In a very nonintuitive procedure, I’ll plug in my phone to the Mac, navigate to it in Finder, and choose Sync. After an excruciatingly long back up time (regardless of how recently I last backed up) the playlists on my phone remain unchanged. The playlists are all fully functional on the Mac.
To further complicate matters, I cannot use some of the songs in my playlists for karaoke night. Again, for no rhyme or reason and for not obscure songs, the display lyric function will not work for some songs that are in the playlist. The lyric button works no problem if I delete the song from the playlist, then search for it in AM.
I unsynced the other day and resynced later, which for whatever reason took forever. This made no difference to the ongoing difficulty with playlists.

My internet searches have prompted many other troubleshooting actions, and led me down numerous fruitless rabbit holes, and the Apple help pages have been utterly unhelpful. Short of nuking and paving my whole Apple ecosystem, is there any decent way to get these Music issues under control?
