I purchased a album and i tunes started downloading and all the songs but one on the album downloaded. the problem is i tunes shows that it did download but i only got 4 seconds of the song. How do I download the song again without purchasing again?
Delete the current copy, close iTunes, reopen, then redownload from your purchase history - iTunes Store > Purchased - or use the cloud download link from the music section of your library.
Retrieving data ...