Just copy your music folder to an external hard drive if moving computers, or else a public folder if just going to another account. Add it back into iTunes then.
No. Your iTunes Store balance will remain on your account, but you should update the email address associated with your iTunes account to keep your info up-to-date.
they should not email but if they do you can inscribe
That way you iTunes can send you updates and new information. :)
To change an email address on an iTunes account simply log in to the account and click on the Edit Account Info button and type the new address into the appropriate box.
If you have an account with iTunes, it will send your email on that account a receipt with the purchase and price. Whether you use a gift card or the account funding through Paypal, you'll still get a receipt of purchase.
Your actual iTunes account does not disappear, but you will have to e-mail Apple to get all of your songs back. Your proof of purchase is the email you got from iTunes telling you that you bought that song.
As long as you have a itunes account you can
If your parents have access to the email registered with the ITunes account then yes. That email account will get a recipitevery few weeks or so. Otherwise no.
If you have forgotten the username and password from previously, you will have to reactivate for a new one. Your computer will say transfer purchases or erase and sync, when on itunes and syncing your ipod with a new library. But if you remember your email and password you may be able to see your username, your username is your email. -I may be wrong in some ways though
Yes. You can bring them in via Itunes or just email them to the iPad's email account.
Yes, They send you a Welcome/confirmation email.
Go to your itunes account or your email, try to get some info from there