Can I download a song twice without paying a second time in iTunes?
If I've previously bought a song in iTunes, can I download it again on another computer without paying for it a second time? Both computers are authorized to the same account.
Solution 1:
If you log in to the iTunes Store with the same Apple ID, you can. Go to the Purchased section (located in the sidebar on the main page) and re-download any songs you wish.
Solution 2:
No, that is not possible. That is described on that apple support page.