My saved music is tied to an old iTuns account how do I transfer to the current account?
My saved music on my iMac version 10.11.3 will not down load to my iPhone version 9.3.1. I believe the music on my iMac dates back to an old iTunes ID how can I transfer to my current ID.
iMac (20-inch Early 2008), OS X Yosemite (10.10.1)