I want to know the answer to the following question:
What did the person who Chopin went with to Berlin do for his work?
All the background I'm provided with is that "On an 1829 return trip to Berlin, he was a guest of Prince Antoni Radziwiłł, governor of the Grand Duchy of Posen—himself an accomplished composer and aspiring cellist.". Is that enough to answer the question?
Answer: no