Hi. I've gone through all of this and none of it is any help.
I put a full post on this thread last night.
Sync issues iPhone iOS 9.2 with iTunes 12.3 ElCap 10.11.2
I have never turned on Apple Music and have never turned on iTunes match, I was only using iCloud for music to enable download of songs not on my phone but that were in my library but that seems to have changed behaviour and as I didn't need it anyway I have set my phone to only show music on the phone.
Some of the menu options don't appear to be where the above threads suggest they should be and I don't have any iCloud enable disable toggle anywhere and my iCloud storage usage doesn't show any iTunes content, 4.7GB of the 5GB is taken up with iCloud photos. Maybe some of the options have been removed or moved since the posts were written last year.
I am confused about the recent music though because in iTunes it shows recently added at the top of the my music page and there are several albums most downloaded from iTunes and one ripped from CD and some singles all purchased on iTunes but when I go to playlists and show the recently added playlist it only contains 12 tracks, the 8 tracks on the ripped CD and 4 purchased singles. But on my phone under recently added it only shows the singles and 1 track from the ripped CD but whenever I select it it says the song is not available.
And when I try and sync in iTunes I sometimes now get error -50 as well as the issues I wrote about last night in the above thread, it not syncing steps 2 and 3 out of 3 and getting stuck for ever at step 7 of 7 and sync never make any difference to the content on the phone.
Basically it's all just screwed since a recent update and I don't know what caused it. I'm totally up to date with iOS 9.2 and iTunes 12.3 on El Capitan 10.11.2
Please help because all the threads give me nada.
Thanks.