Why isn't my iPhone 5S syncing all my music?

I have just bought an iPhone 5S and updated all the latest software and everything has backed up from my old iPhone 4S perfectly, except for my music. I have 191 songs on my iTunes library but my phone is only syncing 97 of them. How can I get all my music in my library synced to my phone?

I have tried looking on forums but nothing worked. Someone said to tick 'convert higher bit rate songs' in the summery section of the iTunes library but that didn't work. I tried making a playlist with all my songs in and syncing it to my phone but only the 97 songs showed up on it. I'm really at a loss of what to do and won't be able to get to the Apple Store until tomorrow afternoon. Can you please help me?

Have you got it set to sync all music? Sounds like you've got it set to sync selected songs/playlists only… Which seems really obvious so may not be the issue but sometimes obvious things are easily missed

I don't understand why you iPhone and iPod owners insist on using Sync rather than manual management of music and video to put music on your devices. That's what I do and I never have this problem.

I have purchased 13 songs on my iPhone 5s yesterday and none would download. What is the problem?

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