Trying to authorize my iTunes to play music from another account

Question

I was trying to play music from another account in my iTunes. I got the message that my computer isn't authorized. I entered the email address and password of the account with which the music purchased and got another message that says  "This computer is already authorized. Including this one, you have authorized 4 computers out of your available 5."  Yet, I am still unable to play the music in my iTunes. Suggestions? Thanks.

Answer 1

There's a couple of ways to get through to the authorisation controls in the 11.0.x versions.
The control is still in the Store menu, but first (if you're using iTunes versions 11.0.x) you might need to bring up the menu bar to see the Store menu.
If you're using 11.0.x, click on the wee boxy icon up in the top-left corner of your iTunes to see the "Show Menu Bar" control, as per the following screenshot:
Then you'll find the control in the Store menu:
Alternatively, if you don't want to bring up the menu bar, it's still possible to get into the authorise controls via nested menus accessible from the wee boxy icon. Here's a screenshot of where to find them: