For the first time, you can buy in Germany, the official score, ie composed for the soundtrack.
If one does not know it's understandable that you're disappointed, because the right soundtrack can be purchased on iTunes and this is full of great songs.
This score is super successful. Even in the cinema, the melody has convinced me. I love him. In my opinion, you should first listen, if this is something for here. If not, then simply pick up the right soundtrack. The is great too.