I'm just reposting something here I posted elsewhere in the (likely vain) hope that someone will have seen this too and know what to do.
I have never used iTunes Match. My iPhone syncs to iTunes, and have the “all music” option chosen rather than specific playlists/artists etc. Most of my music is ripped CDs with some iTunes purchases.
When I activated Apple Music, I lost all of the songs out of all of my playlists on all devices (including iTunes, and I didn’t have backups). On my iPhone, I lost more than half of my album art and loads of the music just suddenly wasn’t there any more.
It’s taken me ages to get (most of) my music back. I’ve tried it with iCML on and off, I’ve tried removing all the music from my iPhone and resyncing, I’ve tried resyncing over and over again to try to get it to put back the missing songs, and eventually I did a full reset of my iPhone.
When I did this, my music synced across, but no songs from any artist beginning with the letter A appeared on my phone. No ABBA, no Adele, no Army of Lovers, no Árstíðir. Renaming to bABBA (or even aABBA) resyncing made them appear. Renaming back to ABBA and resyncing, they stayed. Manual process, takes ages (because it also affects all songs in compilations so it's not just a case of selecting 100 songs and doing it once, there are hundreds of different artists) and I’ve just discovered (joy) that it’s not just artists beginning with A (though ALL artists beginning with A, even if they’re in compilation albums were missing) but also a load of them from B (but somehow even more frustratingly, not all of them) and I’m guessing others as well, I've not got that far yet.
My music is screwed. How on earth do I get it back to how it was?
The playlists alone took me hours to recreate and of course there will be mistakes.
I'm really disappointed because I was going to subscribe – Apple Music is great for my use-case. I love having access to full albums (eg: I have all of the Ultravox remastered albums on my phone) but usually I just listen to my favourites from a playlist and don’t listen long-form to the albums so I don’t really need them permanently on my phone – for the odd occasions when I do want them, streaming or downloading to listen offline would be fine.
Edit: I've discovered that if I SEARCH the iPhone for the tracks, they're there!! They are just not part of any album as far as I can see - they don't play with the album, and they're not listed except when you manually search for them.
This is so strange. Anyone have any ideas what I can do?