How do I transfer music purchases from one apple id to another

Question

I purchased music from Itunes years ago with an old apple id and old email address.  I am trying to play that music in my Itunes on my Dell Win7 laptop that uses a new apple id, and though the computer is authorized, it is authorized under the new apple id.  When I try to play the music, a box with the old apple id comes up, asking for a password.  I click 'Forgot' and am taken to a new screen that asks for my date of birth.  I enter it, and I get a big red message that this does not match there records.
I know the old apple id, but not the password, and the email address that was used for that apple id is no longer a valid email address for me.  The FAQ indicate that I should be able to authorize the music for multiple apple id's, but it does not say 'how'.
I tried changing the apple id and password to the new one when I tried to play the music, and nothing happened.  I can play the music that I added to itunes from cd's but not the purchased music.
I don't think this matters, but just in case it does:  I have a new iphone 6 that is authorized for my new apple id, but my issue right now is authorizing music on my laptop.  I'll tackle syncing the iphone with itunes on my laptop next.

Answer 1

You can’t. Click here and ask the iTunes Store staff for assistance.
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