Turn OFF Sync Library
With the latest version of iOS, iPadOS, and macOS, Sync Library is turned on by default. If you turned off Sync Library, you can turn it back on. Just follow the steps below for your device.

On your iPhone, iPad, or iPod touch
- Go to Settings > Music.
- Turn off Sync Library. If you don't subscribe to Apple Music or iTunes Match, you won’t see an option to turn on Sync Library.
If Sync Library is updating or turned off, you'll see a message at the top of the Library tab in the Apple Music app.