Then follow the steps below to download music from iTunes to your iPhone 8/8 Plus/X. Step 1: Connect your iPhone 8, iPhone 8 Plus or iPhone X to your computer and launch iTunes. Step 2: Tap on the Device tab and choose Music. Step 3: Click the checkbox next to Sync Music and then click Sync to transfer music from iTunes to your iPhone 8/8 Plus/X. Syncing files to iPhone from iTunes will delete the existing files on iPhone. It does offer direct way, which means transferring music to iPhone needs to go through iTunes library. How to Download Songs to iPhone without iTunes for Free. Here is a general explanation for how you can download music to your iPhone for free. Let’s take a look.