Over the Rainbow [With CD (Audio)]

While the book itself is in very good condition, I was disappointed that the accompanying CD was missing. I am a music teacher and am always on the lookout for books to use in my classroom. Although I understand this was obviously from a personal library at some point (there was a very sweet note from what I assume is a grandparent to a grandchild), I would have appreciated some note on there explaining that the CD was missing, or did not actually come with one due to it being a used book.