How do you redownload purchased songs from iTunes?

Question

iTunes Match has completely bollocked up my iTunes linrary.  Many of the albums have double entries—one that is in iCloud to be downloaded (a little cloud with a downward pointing arrow) and a duplicate that is on my computer but not in iCloud (a little cloud with an 'x' in it.)  I've found that the only way to 'fix' this and not have every song play twice is to delete the one that isn't in iCloud.  To delete the one in iCloud would prevent it from appearing on my other devices.
iI have hundreds of songs im my library, so this has been an enormous task. There are several albums that I've purchased in the iTunes Store that have either missing songs or duplicates.  I decided that, rather than futz around with them, I'd delete the entire album from both my library and iCloud and the redownload the purchased album.
I've tried to follow the instructions provided by Apple.  I go to the iTunes store and click on purchased items, it displays the albums I've purchased.  However, in one case, when I click on download all songs, it only download 3 out of a dozen.  How do I get the entire album to download?

Answer 1

Just follow the steps in this article:
www.apple.com/support/kb/ht1351