How to tranfer ITUNES from Iphone to a new COMPUTER?

I have a brand new laptop my old laptop had all my Itunes on it I no longer have access to the old laptop its gone I can't touch it so i HAVE TO ACCESS TO MY OLD ITUNES

I have no I cloud no backups nothing like that

All I have is the music on my phone how do i get that back into my new laptop
I don't want to erase anything because then i have to download 400 plus songs again

Use icloud. You can read about it here: http://www.apple.com/...om/icloud/

Download Itunes. Sign in to itunes with your appleid.boom.youre on itunes. Now look for the button that either says downloaded or purchased and then there will be a button that lets you download everythnig that you paid for