I can't find my migrated iTunes on my new macbook air.

Question

     I recently bought a new Macbook Air. I tried to migrate my information (using Migration Assistant) from my old pc right away when I was first setting up the computer, but it wouldn't let me. We found out later that, for some reason, my Macbook doesn't want to connect to out wireless router. We spent many hours and multiple days on the phone with tech people and thought it was fixed many times :/ But anyway, I finaly got at least my iTunes to complete the migration, but now I can't find where my music is. It's not in my library, but when I looked at my software usage on my computer, it shows that its all here.  I looked at other forums and I collected that it's a more difficult process to migrate information after you've already finished setting up the computer, but like I said, it wouldn't let us right away.  Also, when I go into finder, on the side menu bar under "Shared" it shows my pc, but when I click on it, it says connection failed.  I tried logging into it through Connect As, but it wouldn't let me log in.  I'm not very techy so this could be a very easy thing to fix, I'm just very sick of having so many problems with this new computer that I thought was going to make my life easier.. I appreciate any help you can give me!!
     Thanks,
     Abby

Answer 1

After the migration I can no longer see or access my backups on Time Capsule.
You have a new Mac. Have you been backing up the "new" Mac?  If not, that Mac has no backups...yet.
You do have backups of your other "older" MacBook Pro though.
You cannot "add on" or "continue" backups of the new Mac onto backups of the older Mac.
If you want to see the backups of your "older" Mac.......right-click or try control-click or option-click the Time Machine icon on the dock and select Browse Other Time Machine Disks