My purchased music doesn't appear in the cloud!

My purchased music doesn't appear in the cloud, the only thing that appears is Movies, Apps and books, not my purchased music! The music that I've purchased is registered in ''Account>Purchase History'' but it doesn't appear in the cloud like my apps does!!! and it doesn't appear on my iPod either! when I select purchased in the iTunes app on my iPod it says ''You haven't purchased any movies yet''! Why doesn't my purchased music appear in the cloud?

I'm using iTunes 11.0.2.25 on my Windows 7 computer and have an iPod Touch 5G running on iOS 6,1,3!

Please help me!!!