how do i transfer music from iphone 4s to new computer without erasing anything
I have my old apple 4s, and no longer have my computer that I downloaded many music from disc. I no longer have the disc's for the music, but I have them on my phone. I got a new computer and I have downloaded iTunes and authorized my new computer. It brings up all my music purchased from iTunes, but when I sync my phone it doesn't upload the music on the phone. help!
iPhone 4S, iOS 8.4