The songs in your iTunes library are independent of your iTunes account. In other words, your music files are stored on your hard drive, not on the cloud. Unless you store your music on iCloud, your music stays on your hard drive when you log out of iTunes, just as all your other files stay on your computer. If you wanted, you could open the music files with a different program.
You can create your Apple ID at appleid.apple.com, iTunes PC iTunes Mobile
An iTunes account is always free, whether or not you purchase an iPod from the Apple Store.
no they wont Apple will let you use an iTunes account to purchase items from their iTunes store.
Just sign into your iTunes store, or app store on your Mac with the same Apple ID you have on your HP.
your apple account
They shouldn't be; apps are tied to the device and the Apple account, rather than iTunes.
i dont think you can cause apple and android are not linked together
Try iTunes Access (http://www.itunesaccess.com). They can provide you a US iTUnes account and prepaid credit so you can buy stuff from the USA iTunes store no matter where you live.
No, if you did you should contact Apple.
You can remove in store credit from your Apple ID, and move it to another account. You can gift the amount from your iTunes account. If you find that you cannot, you can contact the iTunes help page, and they can help you move it.
No, you can only redeem an iTunes gift card to one account
iTunes accounts are free anyways. Go to apple.com/itunes and download itunes, once installed it will give you the option to set up an account.