A very illustrating video from BB of Princess Benedikte visiting the German/Scandinavian school in Berlin:
Prinsesse Benedikte imponeret af skole i Berlin | billedbladet.dk
The school is special in the sense that German, Swedish, Norwegian and Danish is taught and used among the pupils and in the lessons - at the same time!
That happens from the very youngest classes and up.
In the video we hear the children sing a Danish song with flawless pronunciation, despite the fact that only some of them are Danes.
I know the song well, from my own time in school and I'd say it's by no means the easiest lyrics to learn for non-Danish speakers!
Benedikte who can effortlessly switch between Danish, German and Swedish was very impressed.
(I'm certain FasterB is also more than familiar with that song.

)
Summary of article in Billed Bladet #39, 2015.
Written by our man in Berlin Henrik Salling.
As you know Princess Benedikte visited the DSG school in Berlin (Deutch-Scandinavische Geminschaftsschule), where she for once was met by a little flowerboy.
The school is three years old and started out with 27 pupils but has now grown to 150 pupils, who are taught in classes encompassing three age groups, i.e. 1-3 classes in one class 4-6 class in another class and so on.
On a daily basis in the classes the teacher and pupils speak Swedish, Danish and Norwegian - that is when they don't switch to English, German or Spanish.
That wasn't a problem for Benedikte who speaks certainly four languages, probably five.
She was pretty impressed and delighted with the energy that permeated through the school and said afterwards: "As a child I learned to speak Danish and it was cozy to speak that today. Swedish is such a beautiful language. More beautiful actually than Danish (*). I'm not afraid of saying that".
She also liked the concept of allowing the pupils themselves to decide what they want to study when they come to school in the morning.
Benedikte also visited the Berliner Philharmonie, where the 150th anniversary of the Danish composer Carl Nielsen (**) is celebrated with performances by the Danish Royal Chapel, a rare treat.
This was Benedikte's first visit to the concert hall and she enjoyed it. Her father Frederik IX was a pretty accomplished conductor in his own right, so she has grown up with classical music.
(*) Swedish is indeed more beautiful than Danish. And if you think Danish and Swedish are more or less variants of the same dialect, you are wrong. That was true some 500 years ago, but no longer. Swedish and Danish is now pretty different, I'd say akin to Portuguese and Spanish. Oddly enough I find southern Swedish more difficult to understand than Stockholm-Swedish. Despite the fact that southern Sweden is ancient Danish land.
(**) This is probably the most well known of Carl Nielsen's pieces, The Fog is Lifting: