downloaded music to my iphone and trying to add them to my mac if i sync it will it erase all my songs on my iphone and give me the one song on my macbook i already have
i purchased a macbook and want to know if i download my music from my iphone 4s to my macbook, my iphone isnt synced to this macbook and its telling me its been synced to another,
will it delete all songs of my iphone and be upgraded with the one song i have on the macbook.
iPhone 4S, iOS 6.1.4, syncing