Question: how do you make an itunes song into a ringtone with garageband?
Answer: Open GarageBand on your iPhone, iPad or iPod touch. In the My Songs browser, tap Browse. , tap Select, then tap the project you shared from your Mac. Tap. ...  Enter a name for the ringtone, then tap Export. ...  Tap Export. When the ringtone is finished exporting, you can assign the ringtone.