Adding music to your iPhone
You don't have to use iTunes to buy music and add it to your iPhone. You can transfer music from any music website by following these instructions.
Transferring music to your iPhone using this method couldn't be easier. But before you begin, make sure all the tracks of an album you want are in one folder.
1: Connect iPhone to computer and launch iTunes.
2: Once iTunes has finished backing up the iPhone, click on "File" - "Add Folder To Library" then select the album folder you want to transfer.
3: Once the album appears in iTunes, click and drag it over to the right. Doing this makes the iPhone window appear.
4: Drop the file on the iPhone icon.
Transfer and synchronization should begin automatically.