I had several cd's of music in iTunes on my PC plus 1 song I purchased from the store. All the music was on my iPhone 4S and iPad. When I replaced the 4s with a 5s and did sync and restore only the purchased song showed on either device. I can see the other music in iTunes but when I try to add to either device I get an error that the music can' t be found. Any help will be greatly appreciated.