I cant be re-download songs through iTunes Store/purchased = No "Music" folder, only Movies Books and Apps appears. Why?

The function for free re-downloading of songs you've already bought but for some occasion have deleted

doesnt seem to work for me, does anyone know why?

http://support.apple.com/kb/HT2519

In this link above, under
"Apps, Books, Music, Movies, or TV-shows on a computer"

"Using iTunes 10.7 or earlier"

step "6."

My iTunes doesnt appear the way its displayed in step "6."

It should be displaying "Music" "Movies" "TV-shows" "Apps" "Books"

but only shows "Movies" "Books" "Apps"

WHY?

This means I cant redownload songs I've already bought without buying them again.

(I use 11.0.5 on OSX 10.6.8 but still iTunes looks for me like it does under the "Using iTunes 10.7 or earlier" -tab,

now that too is weird..)