Make sure you have the latest version of iTunes or Apple music on your computer for Mac users.

If you've upgraded your operating system to Catalina, then iTunes has been replaced with Apple music for older Mac OS s.

You can check for iTunes updates in the APP store.

For PC users, you can download iTunes from the Microsoft store.

First, let's import music into iTunes or Apple music on your computer, go to file, then import, then select a file or folder and click open.

Older versions of iTunes might say add folder toe library instead of import.

But it's the same thing.

Repeat this import process for different folders and files until all music you want downloaded to your iPhone is located in the library in iTunes or Apple Music.

Now plug in your iPhone.

If this is the first time connecting your iPhone to the computer, you have to allow access in your find your window.

Find your iPhone on the left under locations, click Trust on your computer and the phone next inside Apple Music on the left.

Under devices, you should see your iPhone click it now on the upper right side.

Click on Sync Settings.

This opens a finder window showing the sync settings between your iPhone and your computer.

Click on the music tab under the iPhone device.

Information at the top.

Check the box that says Sink music on toe iPhone.

Here's where you can decide which artists, albums, genres or playlists you want downloaded to your iPhone.

Or you can just download your entire music library and finally, just click sink at the bottom.

Now your music is on your phone.

You can also sync over WiFi under the general tab Click Show.

This iPhone went on WiFi and then click automatically sink.

When this iPhone is connected, this will sink your phone over WiFi.

The sink process may take a while, especially if you have a lot of music.

When it's complete, you can click the eject button next to your iPhone in the finder window.

If you're connected by WiFi, you don't need to eject.