If your new mobile phone is an iPhone, after logging in to the same Apple ID, you can synchronize your address book, keychain, photos and many other things to the new iPhone through iCloud cloud disk, but the music downloaded by Netease Cloud Music must be downloaded again. If your new mobile phone is not an iPhone, you need to transfer data through other channels (such as changing your mobile phone in your body). Similarly, songs downloaded from the iPhone cannot be transferred to the new Android phone.