If you have Apple Music’s Sync Library feature enabled, any changes you make to your music library on one device—such as deleting an MP3 file—will automatically sync across all your other devices that also have Sync Library enabled. This means that if you delete a local MP3 file from one device, the same file will be removed from your library on all other devices connected to the same Apple ID and with Sync Library turned on. This syncing ensures consistency, but it also means you need to be cautious when deleting files, as the removal is propagated everywhere.


Choose Music > Settings, click General, then select the Sync Library tickbox. Turn on Sync Library (iPhone, iPad or iPod touch). Go to Settings > Apps > Music.
Access your music library on all your devices


Open the Apple Music app and tap the photo icon Photo icon . · Open the Settings app. · Tap Music. · Turn on Sync Library. Don't see Sync Library? iPhone showing ...
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Use Sync Library with your Apple Music subscription
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