Take the Apple 11 mobile phone and IOS13.3 system as an example:

1. First open the "applemusic" music player that comes with the Apple mobile phone, log in to the Apple account you want to save, and click "Recommended for you" option enters the music interface, click the "Browse" option to find the music track or album you want to add.

2. Click the "Add" button or "..." option of the music track or album, click "Add" to the database in the pop-up menu, and you can find the added songs in the database. and album.

If you don’t want to operate on your mobile phone, you can open the iTunes software and connect your Apple mobile phone to the computer. The mobile phone interface will display the "trust window". After trusting the permissions, you can perform music files on the mobile phone. It performs various operations such as transfer and backup, and can also delete and replace the mobile phone's system, data, software, etc.

(The above situations and methods are applicable to most Apple mobile phone models, that is, iOS system versions.)