Reply to Question about my music library in S4 (can't find half my songs)

ok.. so i upgraded itunes to upgrade my phone software..
and damnit.
now just about half (if not all) of the tracks i created in ableton (custom acapella sequences, for scratching etc.) are unable to be loaded..

that red bar shows up at the bottom where it lets you know your track is loading and says something about the song being dpm protected or corrupt..

now these songs ALL WORKED before i upgraded itunes.
what i have to do is open 'finder' on my mac.. and drag and drop from the finder list.
they work that way.. but MAN, that is ANNOYING-

HOW CAN I FIX THIS???!!!????

I tried putting all these tracks on my desktop. that used to work. ... not now.

please help