How to Add Songs to iPhone From a Computer
The iPhone comes pre-installed with an iTunes application that converts your iPhone into an MP3 player, allowing users to listen to music while on the go. Music can be added to your iPhone by purchasing songs directly from iTunes or by syncing your phone to your home computer, which requires an iTunes account. Adding songs from your computer is a relatively simple process and takes just moments to complete.
Plug your iPhone into your computer with a USB cord. When properly connected, your iPhone will display "Sync in Progress" at the top of the screen and your computer will automatically recognize your iPhone and will open iTunes.
Click on the iPhone logo under "Devices" in the column on the left-hand side of the screen in iTunes.
Click on the "Music" tab at the top of the screen. This will bring up all of your available music and several syncing options.
Ensure that "Sync Music" is checked in the box at the top of the screen.
Choose "Entire Music Library" to sync all of your music from iTunes to your iPhone, or choose "Selected Playlists, Artists, and Genres" if you only want to add certain artists or playlists to your iPhone.
Select which playlists or artists you want to add to your iPhone by checking the box on the left-hand side of the titles.
Click on the "Sync" button at the bottom right-hand corner of the screen. This will begin syncing your selected songs from your computer to your iPhone.
Allow your iPhone to sync completely. When it has finished, iTunes will display "iPhone Sync is Complete: OK to Disconnect" at the top of the screen. It is now safe to disconnect your iPhone from your computer.
Open iTunes on your iPhone by clicking on its icon. All of your music should now be displayed. Click on a song title or playlist to begin listening to music on your iPhone.