Using the song editing capability in iTunes, you can transform any song into a personal ringtone for your iPhone. All you have to do is create a copy of your favorite track and then tweak it a bit to make it into a ringtone your iPhone can use. Ringtones have to be 30 seconds or less, so you’ll have to pick which part of the song you want to use. Writer Bio

How to Use Songs as Ringtones on an iPhone - 80