All Of My Music Was Deleted From My Computer?? Please Help Me!!?

Ok, So I have a dell computer, and I recently screwed it up with a virus. I had to wipe everything out from the computer to get rid of it and its finally off now. One problem though everything got wiped out!!! the pictures and videos I was able to restore easily, most of my school files were already on my flash drive and I was able to restore them, and all of the programs and old settings were able to be put back on easily. The music is the only thing left to be restored; I used frostwire for a majority of my music and the original frostwire file was deleted when I had to nuke the computer. My music is still on my ipod and my android phone, but when I tried to put the music from them back on to the computer, It said on itunes that the original file was not found for all of them. So my question is: is there anyway possible to restore the music from my android phone or ipod or will I have to download my whole library again? Thanks so much in advanced, btw I run Windows 7 on the computer.