As a huge fan of books & films from the very beginning, I can't deny that I was sad, when this very last soundtrack was published, because it ment the end of what was a very long journey...
And this very last soundtrack doesn't disappoint. Alexandre Desplat shows us everything he can, and he can do a lot.
Main Theme of this last Harry Potter film is the haunting "Lily's Theme" introduced in the first track. A quiet piece, not really what you expect of what seems to be first of all an action packed finale. But Desplat shows us here, what the film really is all about. It is more or less the story of Snape and Lily. Of course you got the loud and bombastic pieces, but it all comes back to this very quiet theme.
It may be not the best of all 8 soundtracks (my favorite ones are still number 3 and 7.1) but it is enjoyable listening to.
Why only 4 stars?
Well, just because it is not as good as Desplats first Harry Potter Soundtrack but fits perfectly to the film and is a worthy ending for the series. If you are a fan of the film, buy it, if you are just looking for a good soundtrack without caring that much about the films, think about it.