Mozarts kleines Nachtgespenst

In the organizer's words:

Little Wolfgang Amadeus Mozart is to give a concert in Mainz. He is seven years old and already a famous pianist. But nothing works out and Wolfgang is furious! He is used to always getting everything he wants. After all, he is something special! Luckily, a little night ghost lives in his room, who not only knows how to calm him down, but also helps Wolfgang to rescue the porcelain cook with the delicious cookies and also brings some wonderful music.