iTunes sync to new phone

Hi,

If the music on your computer is imported content from outside sources, you can sync your iPhone to your Mac or PC computer.

• Sync your iPhone, iPad, or iPod using your computer
• Use iTunes to sync your iPhone, iPad, or iPod with your computer

If the content was previously purchased on your Apple ID, you can redownload it from the iTunes Store app on your iPhone. I would also recommend enabling automatic downloads on both your iPhone & Mac/PC.

• Buy or download music from the iTunes Store in Music on Mac
• Download iTunes Store purchases on PC
• Redownload music

Hope this helps.

Here is a place to start→Sync your iPhone, iPad, or iPod using your computer - Apple Support